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Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 7556576837

Certificate GIA 7556576837

Diamond specifications and retailer prices

From $3,880 SGD
HK$23,700 HKD
As of November 1, 2026
Save $4,745 SGD (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,625 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7556576837. Listed at 10 retailers as of November 1, 2026, with prices from $3,880 to $8,625, a $4,745 spread on the same certified stone. MOH London lists it at $8,625. 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
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.76°
OriginNatural
Grading LabGIA
CertificateGIA 7556576837
Dimensions7.50 × 5.88 × 4.11 mm
L/W Ratio1.28
Key to symbols
Crystal, Cloud, Feather
Top View
7.50 mm5.88 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7556576837
Side View
Table 65.0%CrownGirdle: STK-VTKPavilion 35.76°Culet: NoneDepth 69.8%

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: $8,625 SGD|Low: $3,847 SGD|High: $9,131 SGD|Avg: $5,592 SGD|-4.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 6$3,880 SGD
Retailer 4$4,560 SGD
Retailer 5$4,669 SGD
Retailer 2$4,859 SGD
Retailer 8$4,893 SGD
Retailer 9$5,351 SGD
Retailer 7$5,614 SGD
Retailer 3$6,020 SGD
MOH London$8,625 SGD

33 data points across 9 retailers

10 retailers$3,880 SGD to $8,625 SGD

A
Cheapest Retailer
-
$3,880 SGD
HK$23,700 HKD
A
Retailer 2
-
$4,560 SGD
€3,396 EUR
View
A
Retailer 3
-
$4,669 SGD
$3,651 USD
View
A
Retailer 4
-
$4,859 SGD
£2,992 GBP
View
A
Retailer 5
-
$4,893 SGD
View
A
Retailer 6
-
$5,351 SGD
$4,184 USD
View
Final sale: no returns
A
Retailer 7
-
$5,614 SGD
$4,390 USD
View
B+
Retailer 8
-
$5,842 SGD
A$7,028 AUD
View
A
Retailer 9
-
$6,020 SGD
€4,483 EUR
View
Most Expensive
B+
MOH London
43437E97D · Nov 2
$8,625 SGD
£5,310 GBP
View
9 more retailers have this diamond
Prices start from $3,880 SGDSave up to $4,745 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
$3,880 SGD