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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 $3,034 USD
HK$23,700 HKD
As of November 1, 2026
Save $3,710 USD (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,744 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 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 $3,034 to $6,744, a $3,710 spread on the same certified stone. MOH London lists it at $6,744. 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
Color
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: $6,744 USD|Low: $3,008 USD|High: $7,140 USD|Avg: $4,372 USD|-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$3,034 USD
Retailer 4$3,565 USD
Retailer 5$3,651 USD
Retailer 2$3,799 USD
Retailer 8$3,826 USD
Retailer 9$4,184 USD
Retailer 7$4,390 USD
Retailer 3$4,707 USD
MOH London$6,744 USD

33 data points across 9 retailers

10 retailers$3,034 USD to $6,744 USD

A
Cheapest Retailer
-
$3,034 USD
HK$23,700 HKD
A
Retailer 2
-
$3,565 USD
€3,396 EUR
View
A
Retailer 3
-
$3,651 USD
View
A
Retailer 4
-
$3,799 USD
£2,992 GBP
View
A
Retailer 5
-
$3,826 USD
SGD 5,170 SGD
View
A
Retailer 6
-
$4,184 USD
View
Final sale: no returns
A
Retailer 7
-
$4,390 USD
View
B+
Retailer 8
-
$4,568 USD
A$7,028 AUD
View
A
Retailer 9
-
$4,707 USD
€4,483 EUR
View
Most Expensive
B+
MOH London
43437E97D · Nov 2
$6,744 USD
£5,310 GBP
View
9 more retailers have this diamond
Prices start from $3,034 USDSave up to $3,710 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
$3,034 USD