CaratHunter
Plans
Cushion|Natural|GIA

1.51ct F SI2 Cushion Natural Diamond

EX • F/SI2 • GIA 2556417868

Certificate GIA 2556417868

Diamond specifications and retailer prices

From $3,238 USD
HK$25,300 HKD
As of November 2, 2026
Save $3,865 USD (54%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $7,103 USD at MOH London · As of November 1, 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 1, 2026, with prices from $3,238 to $7,103, a $3,865 spread on the same certified stone. MOH London lists it at $7,103. 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
Color
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $7,103 USD|Low: $3,187 USD|High: $7,247 USD|Avg: $4,324 USD|-0.3%
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 2$3,238 USD
Retailer 12$3,253 USD
Retailer 10$3,421 USD
Retailer 3$3,472 USD
Retailer 8$3,608 USD
Retailer 11$3,823 USD
Retailer 7$3,881 USD
Retailer 5$4,067 USD
Retailer 9$4,120 USD
Retailer 6$4,884 USD
Retailer 4$6,727 USD
MOH London$7,103 USD

32 data points across 12 retailers

13 retailers$3,238 USD to $7,103 USD

A
Cheapest Retailer
-
$3,238 USD
HK$25,300 HKD
A
Retailer 2
-
$3,253 USD
View
A
Retailer 3
-
$3,421 USD
View
A
Retailer 4
-
$3,472 USD
View
A
Retailer 5
-
$3,608 USD
View
Final sale: no returns
A
Retailer 6
-
$3,823 USD
A$5,882 AUD
View
A
Retailer 7
-
$3,881 USD
View
A
Retailer 8
-
$4,067 USD
£3,202 GBP
View
A
Retailer 9
-
$4,120 USD
£3,244 GBP
View
A
Retailer 10
-
$4,386 USD
A$6,748 AUD
View
A
Retailer 11
-
$4,884 USD
€4,651 EUR
View
Retailer 12
-
$6,727 USD
View
Price last confirmed 9 days ago
Most Expensive
B
MOH London
81F518F49 · Nov 1
$7,103 USD
£5,593 GBP
View
12 more retailers have this diamond
Prices start from $3,238 USDSave up to $3,865 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
$3,238 USD