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Cushion|Natural|GIA

1.51ct F SI1 Cushion Natural Diamond

VG • F/SI1 • GIA 6555110792

Certificate GIA 6555110792

Diamond specifications and retailer prices

From $3,418 USD
HK$26,700 HKD
As of November 1, 2026
Save $3,851 USD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $7,268 USD 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 SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6555110792. Listed at 20 retailers as of November 1, 2026, with prices from $3,418 to $7,268, a $3,851 spread on the same certified stone. MOH London lists it at $7,268. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
F
Color
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555110792
Dimensions6.51 × 6.48 × 4.41 mm
L/W Ratio1.00
Top View
6.51 mm6.48 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6555110792
Side View
Table 64.0%CrownGirdle: MED-THKPavilionCulet: NDepth 68.1%

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 1
Current: $7,268 USD|Low: $3,300 USD|High: $7,356 USD|Avg: $4,579 USD|-0.9%
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
November 2, 2026
Retailer 14$3,418 USD
Retailer 16$3,484 USD
Retailer 15$3,560 USD
Retailer 7$3,816 USD
Retailer 9$3,935 USD
Retailer 4$4,088 USD
Retailer 5$4,135 USD
Retailer 2$4,270 USD
Retailer 3$4,330 USD
Retailer 17$4,330 USD
Retailer 18$4,480 USD
Retailer 12$4,538 USD
Retailer 8$4,601 USD
Retailer 10$5,160 USD
Retailer 11$5,164 USD
Retailer 6$5,306 USD
Retailer 13$5,610 USD
MOH London$7,268 USD

29 data points across 18 retailers

20 retailers$3,418 USD to $7,268 USD

A
Cheapest Retailer
-
$3,418 USD
HK$26,700 HKD
A
Retailer 2
-
$3,484 USD
View
A
Retailer 3
-
$3,560 USD
View
A
Retailer 4
-
$3,639 USD
View
A
Retailer 5
-
$3,701 USD
View
B+
Retailer 6
-
$3,816 USD
View
Final sale: no returns
A
Retailer 7
-
$3,935 USD
View
A
Retailer 8
-
$4,088 USD
View
A
Retailer 9
-
$4,135 USD
View
A
Retailer 10
-
$4,270 USD
£3,362 GBP
View
A
Retailer 11
-
$4,330 USD
View
A
Retailer 12
-
$4,330 USD
View
A
Retailer 13
-
$4,480 USD
View
A
Retailer 14
-
$4,538 USD
£3,573 GBP
View
Retailer 15
-
$4,601 USD
A$7,078 AUD
View
Price last confirmed 24 days ago
Retailer 16
-
$5,160 USD
View
Price last confirmed 10 days ago
B+
Retailer 17
-
$5,164 USD
€4,918 EUR
View
B+
Retailer 18
-
$5,306 USD
View
B+
Retailer 19
-
$5,610 USD
ZAR 90,626 ZAR
View
Most Expensive
B
MOH London
98AE5D049 · Nov 2
$7,268 USD
£5,723 GBP
View
19 more retailers have this diamond
Prices start from $3,418 USDSave up to $3,851 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
$3,418 USD