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Cushion|Natural|GIA

1.51ct H SI2 Cushion Natural Diamond

EX • H/SI2 • GIA 6555010552

Certificate GIA 6555010552

Diamond specifications and retailer prices

From $3,600 SGD
HK$22,000 HKD
As of November 2, 2026
Save $1,823 SGD (34%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $7,985 SGD at MOH London · As of October 21, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6555010552. Listed at 14 retailers as of November 2, 2026, with a 51% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6555010552
Dimensions7.62 × 6.09 × 4.17 mm
L/W Ratio1.25
Top View
7.62 mm6.09 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555010552
Side View
Table 68.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.5%

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: $7,985 SGD|Low: $3,535 SGD|High: $8,405 SGD|Avg: $4,907 SGD|-5.0%
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
November 2, 2026
Retailer 2$3,600 SGD
Retailer 14$3,603 SGD
Retailer 12$3,858 SGD
Retailer 10$3,874 SGD
Retailer 3$3,964 SGD
Retailer 5$4,224 SGD
Retailer 9$4,351 SGD
Retailer 13$4,372 SGD
Retailer 7$4,489 SGD
Retailer 11$4,843 SGD
Retailer 6$4,944 SGD
Retailer 8$5,423 SGD
Retailer 4$7,674 SGD
MOH London$7,985 SGD

26 data points across 14 retailers

14 retailers$3,600 SGD to $5,423 SGD

A
Cheapest Retailer
-
$3,600 SGD
HK$22,000 HKD
A
Retailer 2
-
$3,603 SGD
$2,818 USD
View
A
Retailer 3
-
$3,858 SGD
$3,018 USD
View
A
Retailer 4
-
$3,874 SGD
$3,030 USD
View
Final sale: no returns
A
Retailer 5
-
$3,964 SGD
$3,101 USD
View
A
Retailer 6
-
$4,224 SGD
$3,304 USD
View
A
Retailer 7
-
$4,351 SGD
$3,404 USD
View
A
Retailer 8
-
$4,372 SGD
$3,420 USD
View
A
Retailer 9
-
$4,489 SGD
£2,765 GBP
View
A
Retailer 10
-
$4,843 SGD
£2,983 GBP
View
A
Retailer 11
-
$5,375 SGD
A$6,468 AUD
View
A
Retailer 12
-
$5,423 SGD
€4,040 EUR
View
Retailer 13
-
$7,674 SGD
$6,003 USD
View
Price last confirmed 9 days ago
Most Expensive
MOH London
01783FD08 · Oct 21
$7,985 SGD
£4,918 GBP
View
Price last confirmed 12 days ago
13 more retailers have this diamond
Prices start from $3,600 SGDSave up to $1,823 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
$3,600 SGD