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Cushion|Natural|GIA

2.51ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 3555709471

Certificate GIA 3555709471

Diamond specifications and retailer prices

From $21,308 USD
As of November 2, 2026
Save $7,620 USD (26%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $32,585 USD at Cape Diamonds · As of October 22, 2026
View at Cape Diamonds

About this 2.51ct natural cushion diamond

This 2.51ct natural cushion sits in the two to three carat band, graded G 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 3555709471. Listed at 17 retailers as of October 27, 2026, with a 36% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

2.51
Carat
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3555709471
Dimensions8.95 × 6.99 × 4.87 mm
L/W Ratio1.28
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Needle, Feather, Natural
Top View
8.95 mm6.99 mm2.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 3555709471
Side View
Table 67.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 69.6%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $32,585 USD|Low: $19,337 USD|High: $32,799 USD|Avg: $24,609 USD|-0.7%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 12$19,507 USD
Retailer 10$21,308 USD
Retailer 14$21,515 USD
Retailer 17$22,091 USD
Retailer 4$22,276 USD
Retailer 7$22,456 USD
Retailer 2$22,879 USD
Retailer 13$23,204 USD
Retailer 18$23,235 USD
Retailer 11$24,046 USD
Retailer 5$24,551 USD
Retailer 9$24,892 USD
Retailer 16$24,957 USD
Retailer 8$25,660 USD
Retailer 19$25,660 USD
Retailer 6$26,520 USD
Retailer 20$26,827 USD
Retailer 15$28,001 USD
Retailer 21$28,814 USD
Retailer 3$28,928 USD
Cape Diamonds$32,585 USD

28 data points across 21 retailers

17 retailers$21,308 USD to $28,928 USD

A
Cheapest Retailer
-
$21,308 USD
Retailer 2
-
$22,091 USD
View
Price last confirmed 10 days ago
Retailer 3
-
$22,276 USD
View
Price last confirmed 9 days ago
B+
Retailer 4
-
$22,456 USD
View
B+
Retailer 5
-
$22,879 USD
₹2,178,942 INR
View
B+
Retailer 6
-
$23,204 USD
View
B+
Retailer 7
-
$23,235 USD
CA$32,271 CAD
View
B+
Retailer 8
-
$24,892 USD
View
Retailer 9
-
$24,957 USD
£19,651 GBP
View
Price last confirmed 9 days ago
Retailer 10
-
$25,660 USD
View
Price last confirmed 7 days ago
Retailer 11
-
$25,660 USD
View
Price last confirmed 7 days ago
Retailer 12
-
$26,520 USD
View
Price last confirmed 7 days ago
B
Retailer 13
-
$26,827 USD
View
B
Retailer 14
-
$28,001 USD
€26,668 EUR
View
B
Retailer 15
-
$28,814 USD
View
B
Retailer 16
-
$28,928 USD
View
Most Expensive
Cape Diamonds
cert_3555709471 · Oct 22
$32,585 USD
ZAR 526,410 ZAR
View
Price last confirmed 11 days ago
16 more retailers have this diamond
Prices start from $21,308 USDSave up to $7,620 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. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
2.51ct Cushion
$21,308 USD