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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 $4,371 SGD
HK$26,700 HKD
As of November 1, 2026
Save $4,925 SGD (53%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,295 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 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 $4,371 to $9,295, a $4,925 spread on the same certified stone. MOH London lists it at $9,295. 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $9,295 SGD|Low: $4,220 SGD|High: $9,407 SGD|Avg: $5,859 SGD|-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 3, 2026
Retailer 14$4,371 SGD
Retailer 16$4,456 SGD
Retailer 15$4,553 SGD
Retailer 7$4,880 SGD
Retailer 9$5,032 SGD
Retailer 4$5,228 SGD
Retailer 5$5,288 SGD
Retailer 11$5,461 SGD
Retailer 3$5,538 SGD
Retailer 17$5,538 SGD
Retailer 18$5,729 SGD
Retailer 2$5,804 SGD
Retailer 8$5,884 SGD
Retailer 10$6,599 SGD
Retailer 12$6,604 SGD
Retailer 6$6,786 SGD
Retailer 13$7,174 SGD
MOH London$9,295 SGD

30 data points across 18 retailers

20 retailers$4,371 SGD to $9,295 SGD

A
Cheapest Retailer
-
$4,371 SGD
HK$26,700 HKD
A
Retailer 2
-
$4,456 SGD
$3,484 USD
View
A
Retailer 3
-
$4,553 SGD
$3,560 USD
View
A
Retailer 4
-
$4,654 SGD
$3,639 USD
View
A
Retailer 5
-
$4,733 SGD
$3,701 USD
View
B+
Retailer 6
-
$4,880 SGD
$3,816 USD
View
Final sale: no returns
A
Retailer 7
-
$5,032 SGD
$3,935 USD
View
A
Retailer 8
-
$5,228 SGD
$4,088 USD
View
A
Retailer 9
-
$5,288 SGD
$4,135 USD
View
A
Retailer 10
-
$5,461 SGD
£3,362 GBP
View
A
Retailer 11
-
$5,538 SGD
$4,330 USD
View
A
Retailer 12
-
$5,538 SGD
$4,330 USD
View
A
Retailer 13
-
$5,729 SGD
$4,480 USD
View
A
Retailer 14
-
$5,804 SGD
£3,573 GBP
View
Retailer 15
-
$5,884 SGD
A$7,078 AUD
View
Price last confirmed 24 days ago
Retailer 16
-
$6,599 SGD
$5,160 USD
View
Price last confirmed 10 days ago
B+
Retailer 17
-
$6,604 SGD
€4,918 EUR
View
B+
Retailer 18
-
$6,786 SGD
$5,306 USD
View
B+
Retailer 19
-
$7,174 SGD
ZAR 90,626 ZAR
View
Most Expensive
B
MOH London
98AE5D049 · Nov 2
$9,295 SGD
£5,723 GBP
View
19 more retailers have this diamond
Prices start from $4,371 SGDSave up to $4,925 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
$4,371 SGD