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Cushion|Natural|GIA

1.51ct I SI2 Cushion Natural Diamond

EX • I/SI2 • GIA 2233870089

Certificate GIA 2233870089

Diamond specifications and retailer prices

From $6,418 NZD
$3,611 USD
As of November 1, 2026
Save $6,511 NZD (50%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $12,929 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 I 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 2233870089. Listed at 12 retailers as of November 1, 2026, with prices from $6,418 to $12,929, a $6,511 spread on the same certified stone. MOH London lists it at $12,929. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle35.51°
OriginNatural
Grading LabGIA
CertificateGIA 2233870089
Dimensions7.60 × 5.86 × 4.06 mm
L/W Ratio1.30
Key to symbols
Crystal, Cloud, Needle
Top View
7.60 mm5.86 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2233870089
Side View
Table 65.0%CrownGirdle: MED-ETKPavilion 35.51°Culet: NoneDepth 69.3%

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: $12,929 NZD|Low: $6,418 NZD|High: $15,304 NZD|Avg: $9,530 NZD|-14.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9$6,418 NZD
Retailer 11$6,860 NZD
Retailer 10$6,887 NZD
Retailer 2$7,918 NZD
Retailer 8$8,264 NZD
Retailer 6$8,780 NZD
Retailer 7$8,780 NZD
Retailer 5$9,082 NZD
Retailer 4$9,191 NZD
Retailer 3$9,679 NZD
MOH London$12,929 NZD

44 data points across 11 retailers

12 retailers$6,418 NZD to $12,929 NZD

A
Cheapest Retailer
-
$6,418 NZD
$3,611 USD
A
Retailer 2
-
$6,860 NZD
$3,860 USD
View
Final sale: no returns
A
Retailer 3
-
$6,887 NZD
$3,875 USD
View
A
Retailer 4
-
$7,128 NZD
A$6,170 AUD
View
A
Retailer 5
-
$7,918 NZD
£3,508 GBP
View
B+
Retailer 6
-
$8,264 NZD
$4,650 USD
View
B+
Retailer 7
-
$8,780 NZD
$4,940 USD
View
B+
Retailer 8
-
$8,780 NZD
$4,940 USD
View
B+
Retailer 9
-
$9,082 NZD
$5,110 USD
View
B+
Retailer 10
-
$9,191 NZD
€4,925 EUR
View
B+
Retailer 11
-
$9,679 NZD
A$8,378 AUD
View
Most Expensive
B
MOH London
8B5F20B67 · Nov 2
$12,929 NZD
£5,728 GBP
View
11 more retailers have this diamond
Prices start from $6,418 NZDSave up to $6,511 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
$6,418 NZD