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Cushion|Natural|GIA

1.51ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 2556337276

Certificate GIA 2556337276

Diamond specifications and retailer prices

From $4,036 USD
As of October 31, 2026
Save $4,728 USD (54%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $8,764 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.51ct natural cushion diamond

This 1.51ct natural cushion sits in the one-and-a-half to two 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 2556337276. Listed at 21 retailers as of October 29, 2026, with prices from $4,036 to $8,764, a $4,728 spread on the same certified stone. MOH London lists it at $8,764. 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

1.51
Carat
G
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556337276
Dimensions6.70 × 6.64 × 4.37 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.70 mm6.64 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556337276
Side View
Table 65.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 65.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $8,764 USD|Low: $4,032 USD|High: $8,885 USD|Avg: $5,627 USD|-1.1%
MOH London
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
November 2, 2026
Retailer 20$4,036 USD
Retailer 15$4,045 USD
Retailer 14$4,323 USD
Retailer 10$4,538 USD
Retailer 7$4,579 USD
Retailer 19$4,605 USD
Retailer 2$4,609 USD
Retailer 11$4,665 USD
Retailer 17$4,815 USD
Retailer 6$4,838 USD
Retailer 18$5,120 USD
Retailer 13$5,141 USD
Retailer 5$5,248 USD
Retailer 8$5,269 USD
Retailer 12$5,521 USD
Retailer 4$6,195 USD
Retailer 16$6,640 USD
Retailer 3$6,728 USD
Retailer 9$8,513 USD
MOH London$8,764 USD

23 data points across 20 retailers

21 retailers$4,036 USD to $8,764 USD

A
Cheapest Retailer
-
$4,036 USD
A
Retailer 2
-
$4,045 USD
HK$31,600 HKD
View
A
Retailer 3
-
$4,323 USD
View
A
Retailer 4
-
$4,538 USD
View
A
Retailer 5
-
$4,579 USD
View
A
Retailer 6
-
$4,605 USD
€4,386 EUR
View
A
Retailer 7
-
$4,609 USD
View
Final sale: no returns
A
Retailer 8
-
$4,665 USD
View
A
Retailer 9
-
$4,815 USD
View
A
Retailer 10
-
$4,838 USD
View
A
Retailer 11
-
$5,120 USD
£4,032 GBP
View
A
Retailer 12
-
$5,141 USD
£4,048 GBP
View
A
Retailer 13
-
$5,248 USD
View
A
Retailer 14
-
$5,269 USD
View
B+
Retailer 15
-
$5,459 USD
A$8,398 AUD
View
Retailer 16
-
$5,521 USD
A$8,493 AUD
View
Price last confirmed 23 days ago
B+
Retailer 17
-
$6,195 USD
€5,900 EUR
View
B+
Retailer 18
-
$6,640 USD
View
B+
Retailer 19
-
$6,728 USD
ZAR 108,691 ZAR
View
Retailer 20
-
$8,513 USD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
AD4A47712 · Oct 29
$8,764 USD
£6,901 GBP
View
20 more retailers have this diamond
Prices start from $4,036 USDSave up to $4,728 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
1.51ct Cushion
$4,036 USD