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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 $5,392 NZD
HK$23,700 HKD
As of November 1, 2026
Save $6,594 NZD (55%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $11,986 NZD 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 $5,392 to $11,986, a $6,594 spread on the same certified stone. MOH London lists it at $11,986. 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: $11,986 NZD|Low: $5,346 NZD|High: $12,690 NZD|Avg: $7,771 NZD|-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$5,392 NZD
Retailer 2$6,237 NZD
Retailer 5$6,489 NZD
Retailer 3$6,753 NZD
Retailer 8$6,800 NZD
Retailer 9$7,436 NZD
Retailer 7$7,802 NZD
Retailer 4$8,366 NZD
MOH London$11,986 NZD

33 data points across 9 retailers

10 retailers$5,392 NZD to $11,986 NZD

A
Cheapest Retailer
-
$5,392 NZD
HK$23,700 HKD
A
Retailer 2
-
$6,237 NZD
€3,342 EUR
View
A
Retailer 3
-
$6,489 NZD
$3,651 USD
View
A
Retailer 4
-
$6,753 NZD
£2,992 GBP
View
A
Retailer 5
-
$6,800 NZD
SGD 5,170 SGD
View
A
Retailer 6
-
$7,436 NZD
$4,184 USD
View
Final sale: no returns
A
Retailer 7
-
$7,802 NZD
$4,390 USD
View
B+
Retailer 8
-
$8,119 NZD
A$7,028 AUD
View
A
Retailer 9
-
$8,366 NZD
€4,483 EUR
View
Most Expensive
B+
MOH London
43437E97D · Nov 2
$11,986 NZD
£5,310 GBP
View
9 more retailers have this diamond
Prices start from $5,392 NZDSave up to $6,594 NZD

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
$5,392 NZD