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Cushion|Natural|GIA

1.51ct F SI2 Cushion Natural Diamond

EX • F/SI2 • GIA 2556417868

Certificate GIA 2556417868

Diamond specifications and retailer prices

From $4,142 SGD
HK$25,300 HKD
As of November 2, 2026
Save $4,650 SGD (53%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,792 SGD at MOH London · As of November 2, 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 F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556417868. Listed at 13 retailers as of November 2, 2026, with prices from $4,142 to $8,792, a $4,650 spread on the same certified stone. MOH London lists it at $8,792. 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
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556417868
Dimensions6.56 × 6.51 × 4.34 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.56 mm6.51 mm1.51 ctF / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556417868
Side View
Table 66.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 66.7%

Caratlytics Score

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

Price History

Last verified: Nov 2
Current: $8,792 SGD|Low: $4,076 SGD|High: $9,268 SGD|Avg: $5,548 SGD|-3.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 5$4,142 SGD
Retailer 12$4,160 SGD
Retailer 11$4,375 SGD
Retailer 3$4,440 SGD
Retailer 9$4,614 SGD
Retailer 2$4,960 SGD
Retailer 8$4,963 SGD
Retailer 6$5,201 SGD
Retailer 10$5,270 SGD
Retailer 7$6,246 SGD
Retailer 4$8,603 SGD
MOH London$8,792 SGD

30 data points across 12 retailers

13 retailers$4,142 SGD to $8,792 SGD

A
Cheapest Retailer
-
$4,142 SGD
HK$25,300 HKD
A
Retailer 2
-
$4,160 SGD
$3,253 USD
View
A
Retailer 3
-
$4,375 SGD
$3,421 USD
View
A
Retailer 4
-
$4,440 SGD
$3,472 USD
View
A
Retailer 5
-
$4,614 SGD
$3,608 USD
View
Final sale: no returns
A
Retailer 6
-
$4,960 SGD
A$5,966 AUD
View
A
Retailer 7
-
$4,963 SGD
$3,881 USD
View
A
Retailer 8
-
$5,201 SGD
£3,202 GBP
View
A
Retailer 9
-
$5,270 SGD
£3,244 GBP
View
A
Retailer 10
-
$5,610 SGD
A$6,748 AUD
View
A
Retailer 11
-
$6,246 SGD
€4,651 EUR
View
Retailer 12
-
$8,603 SGD
$6,727 USD
View
Price last confirmed 10 days ago
Most Expensive
B+
MOH London
81F518F49 · Nov 2
$8,792 SGD
£5,413 GBP
View
12 more retailers have this diamond
Prices start from $4,142 SGDSave up to $4,650 SGD

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
$4,142 SGD