Vaultmark LendingVAULTMARKLENDING
Diamond Collateral Lending Desk

Diamond Loans: Certified Gemological Capital

Borrow $5,000 to over $1,500,000 against certified loose and mounted natural diamonds (1.00ct+), tennis bracelets, and diamond rivières. Up to 80% LTV against wholesale Rapaport benchmarks, GIA Graduate Gemologist verification, zero personal credit checks, and insured UL Class 3 vault custody.

Capital Advance$5,000 – $1,500,000+Single stones, matched pairs, or commercial jewelry parcels
Loan-to-ValueUp to 80%Benchmarked directly against RapNet live wholesale clearing indices
Offer Turnaround2 – 4 HoursDigital written term sheet based on GIA grading report
Recourse Structure100% Non-RecourseZero credit bureau inquiries or score reporting
Eligible Portfolio

Accepted Diamond Asset Categories

We evaluate certified natural loose stones, signed luxury maison suites, and high-karat solid precious metals.

1.00ct to 20.00ct+ Solitaires

Certified Loose Diamonds

Natural earth-mined diamonds documented with laboratory grading dossiers. Valued directly on cut proportions, table percentages, fluorescence, and live dealer demand.

Key Criteria & Variations:
Round BrilliantOvalEmerald CutRadiantCushionPear
Underwriting Note: GIA or AGS grading preferred; verified by on-staff Graduate Gemologists.
Typical Advance:Up to 80% Rapaport Wholesale Value
Line Bracelets

Diamond Tennis Bracelets

Classic four-prong and bezel-set line bracelets. Appraised on overall diamond color consistency, clarity matching, and clasp safety mechanism integrity.

Key Criteria & Variations:
4.00ctw to 15.00ctw15.00ctw to 40.00ctw+Platinum 95018k White / Yellow Gold
Underwriting Note: Matching color/clarity grades across all stones maximize collateral grading.
Typical Advance:70% – 78% Wholesale Value
High Jewelry Neckpieces

Diamond Rivière & Tennis Necklaces

Substantial continuous diamond collars and graduated necklaces. Evaluated on total carat weight, individual stone symmetry, and precious metal mounting weight.

Key Criteria & Variations:
Graduated RivièreUniform Tennis Choker10.00ctw to 80.00ctw+
Underwriting Note: Graduated center stones above 1.0ct evaluated on individual stone parameters.
Typical Advance:70% – 78% Wholesale Value
Solitaire Pairs

Matched Diamond Studs & Earrings

Matched pairs of earth-mined diamonds mounted in platinum or 18k gold baskets. Appraised on paired optical symmetry, diameter matching, and color uniformity.

Key Criteria & Variations:
2.00ctw to 10.00ctw PairsRoundAsscherCushion Cut
Underwriting Note: Pairs with matching GIA certificates receive top-tier advance allocations.
Typical Advance:Up to 80% Wholesale Value
Investment Gemstones

Natural Fancy Colored Diamonds

Rare natural colored diamonds evaluated on hue saturation, tone, and modifier presence. Appraised in direct consultation with international fancy color trading desks.

Key Criteria & Variations:
Fancy Yellow (Canary)Fancy PinkFancy BlueChameleon
Underwriting Note: GIA Colored Diamond Identification and Origin Report required.
Typical Advance:65% – 75% Verified Market Value
Antique & Vintage Jewelry

Estate & Art Deco Diamond Suites

Period diamond jewelry evaluated on historical provenance, period craftsmanship, platinum filigree condition, and intrinsic antique diamond value.

Key Criteria & Variations:
Old European CutOld Mine CutPlatinum FiligreeArt Deco (1920–1939)
Underwriting Note: Historical maker signatures and unmolested antique mountings command premiums.
Typical Advance:65% – 75% Wholesale Value
Underwriting Standards

Diamond Valuation & Appraisal Drivers

Our private credit underwriting is governed by objective laboratory testing, live wholesale exchange indices, and non-destructive analysis.

Factor 1

GIA Certification & The 4Cs

Gemological Institute of America Laboratory Dossier

Carat weight, color grade (D–Z), clarity (FL–I1), and cut precision (polish, symmetry, cut grade). A genuine GIA report establishes the objective wholesale baseline across international markets.

Underwriting Impact:Unlocks maximum 80% LTV against secondary wholesale trading indices
Factor 2

Rapaport Wholesale Market Analysis

Live RapNet B2B Dealer Clearing Prices

Unlike retail replacement appraisals that feature inflated insurance estimates, our private credit underwriting uses real-time wholesale transaction data reflecting what diamond dealers pay in cash today.

Underwriting Impact:Provides accurate, non-inflated borrowing terms with zero hidden adjustments
Factor 3

Laser Inscription & Natural Verification

Micro-Spectroscopic Analysis & GIA Serial Matching

Our in-house Graduate Gemologists verify the GIA laser inscription on the diamond's girdle under 40x magnification and utilize Raman spectroscopy to confirm 100% natural earth-mined origin.

Underwriting Impact:Confirms authentic natural origin; lab-grown diamonds are excluded
Factor 4

Title & International Registry Clearance

The Watch & Jewelry Register Cross-Check

Prior to loan funding, all high-value diamonds and jewelry items are screened against international stolen property databases and law enforcement registries.

Underwriting Impact:Mandatory protocol protecting borrower title and legal custody
Institutional Economics

Representative Diamond Financing Scenarios

Indicative term structures reflecting real-world wholesale clearing values and our non-recourse private credit facility.

Item & SpecificationEst. Wholesale Market ValueIndicative AdvanceMonthly Rate RangeTerm DurationFees
Round Brilliant Diamond (Loose)
3.02ct • GIA H / VS1 • Triple Excellent
$38,000$30,4002.0% – 3.2%3, 6, or 12 Months$0.00 Origination / $0.00 Storage
Platinum Diamond Tennis Bracelet
10.50ctw • 4-Prong • F-G Color / VS Clarity
$16,000$12,8002.0% – 3.5%3, 6, or 12 Months$0.00 Origination / $0.00 Storage
Graduated Diamond Rivière
25.00ctw • 18k White Gold • G-H / SI1
$42,000$33,6002.0% – 3.0%3, 6, or 12 Months$0.00 Origination / $0.00 Storage
Emerald Cut Diamond (Mounted)
5.15ct • GIA F / VVS2 • Platinum Solitaire
$95,000$76,0001.8% – 2.8%3, 6, or 12 Months$0.00 Origination / $0.00 Storage

* Wholesale values reflect real-time dealer clearing benchmarks and precious metal spot indices. All loans are 100% non-recourse with zero credit checks and zero prepayment penalties.

View complete loan terms
Custody & Disbursement

The 4-Stage Door-to-Vault Intake Journey

Every step is protected by armored logistics, dual-custody video protocols, and Lloyd's of London transit insurance.

012 – 4 Hours

Submit GIA Report or Diamond Details

Provide your GIA certificate number, carat specifications, or jewelry photos. Receive an indicative written term sheet within 2 to 4 business hours.

Stage 1 of 4 • Diamond Underwriting
02Next Business Day

Fully Insured Armored Courier Transit

Receive a prepaid Malca-Amit or Brink's armored transport label with discreet pickup and 100% all-risk insurance coverage up to $500,000+ per parcel.

Stage 2 of 4 • Diamond Underwriting
03Same Day as Arrival

In-Vault Gemological Verification

Unsealed in clean-bench vault conditions under continuous 4K video recording. GIA Graduate Gemologists verify girdle laser inscription, weight, and clarity.

Stage 3 of 4 • Diamond Underwriting
04Disbursed in < 60 Minutes

Same-Day Fedwire Disbursement

Sign non-recourse loan agreement electronically. Capital wired immediately via Fedwire. Collateral sealed in a serialized container in our UL Class 3 vault.

Stage 4 of 4 • Diamond Underwriting
Underwriting Clarifications

Frequently Asked Questions About Diamond Loans

Essential answers on appraisal methodology, non-recourse structure, laboratory testing, and vault security.

No. Vaultmark Lending exclusively underwrites collateral loans on 100% natural, earth-mined diamonds. Lab-grown diamonds experience rapid depreciation and lack secondary wholesale market liquidity, making them ineligible as loan collateral.

Have questions about luxury watches or general collateral policies?Explore all FAQs

Appraisal & Non-Affiliation Disclosure: Vaultmark Lending LLC is an independent private collateral lender. Valuations are based on objective secondary wholesale market indices (including RapNet and international auction clears) and do not represent retail replacement insurance appraisals. Only natural, earth-mined diamonds with verified authenticity are eligible.

Private Collateral Facility

Access Capital Against Your Diamond Today

Receive a confidential written valuation and indicative loan-to-value term sheet within 2 to 4 business hours. No credit checks, no debt reporting, and complete non-recourse protection.

Zero Credit InquiriesLloyd's Insured Transit & Custody2–4 Hour Indicative Terms