Radiant|Natural|GIA

3.51ct I SI1 Radiant Natural Diamond

ID • I/SI1 • GIA 2538589382

Certificate GIA 2538589382

Diamond specifications and retailer prices

From $35,900 USD
Save $8,104 USD (18%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $51,920 USD at Cape Diamonds
View at Cape Diamonds

About this 3.51ct natural radiant diamond

This 3.51ct natural radiant sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2538589382. Listed at 9 retailers, with a relatively tight 23% spread, which is unusual at this carat range and suggests competitive pricing across the listings. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.51
Carat
I
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2538589382
Dimensions10.36 × 7.60 × 5.14 mm
L/W Ratio1.36
Top View
10.36 mm7.60 mm3.51 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2538589382
Side View
Table 67.0%CrownGirdle: ThickPavilionCulet: NoneDepth 67.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $51,920 USD|Low: $35,900 USD|High: $51,920 USD|Avg: $43,652 USD
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
September 18, 2026
Retailer 2$35,900 USD
Retailer 12$36,012 USD
Retailer 9$37,277 USD
Retailer 10$39,435 USD
Retailer 6$41,378 USD
Retailer 4$42,312 USD
Retailer 11$43,490 USD
Retailer 7$44,004 USD
Retailer 8$45,749 USD
Retailer 5$47,316 USD
Retailer 13$48,761 USD
Retailer 3$50,308 USD
Cape Diamonds$51,920 USD

28 data points across 13 retailers

9 retailers$35,900 USD to $44,004 USD

A
Cheapest Retailer
-
$35,900 USD
A
Retailer 2
-
$36,012 USD
View
Price last confirmed 32 days ago
B+
Retailer 3
-
$39,435 USD
View
Price last confirmed 12 days ago
B+
Retailer 4
-
$41,378 USD
£32,581 GBP
View
Price last confirmed 14 days ago
B+
Retailer 5
-
$43,490 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$44,004 USD
A$67,698 AUD
View
B
Retailer 7
-
$45,749 USD
View
Price last confirmed 16 days ago
B
Retailer 8
-
$48,761 USD
€46,439 EUR
View
Price last confirmed 49 days ago
Most Expensive
B
Cape Diamonds
cert_2538589382 · Aug 20
$51,920 USD
ZAR 838,775 ZAR
View
Price last confirmed 42 days ago
8 more retailers have this diamond
Prices start from $35,900 USDSave up to $8,104 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing.

A
3.51ct Radiant
$35,900 USD