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Cushion|Natural|GIA

1.51ct I SI1 Cushion Natural Diamond

ID • I/SI1 • GIA 1232947260

Certificate GIA 1232947260

Diamond specifications and retailer prices

From $5,938 NZD
HK$26,100 HKD
As of November 1, 2026
Save $6,940 NZD (54%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $12,877 NZD at MOH London · As of November 1, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1232947260. Listed at 9 retailers as of November 1, 2026, with prices from $5,938 to $12,877, a $6,940 spread on the same certified stone. MOH London lists it at $12,877. 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
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle35.31°
OriginNatural
Grading LabGIA
CertificateGIA 1232947260
Dimensions7.81 × 5.96 × 4.04 mm
L/W Ratio1.31
Key to symbols
Feather, Needle, Pinpoint, Cloud
Top View
7.81 mm5.96 mm1.51 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1232947260
Side View
Table 59.0%CrownGirdle: MED-THKPavilion 35.31°Culet: NoneDepth 67.8%

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: $12,877 NZD|Low: $5,938 NZD|High: $14,141 NZD|Avg: $8,672 NZD|-8.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 5$5,938 NZD
Retailer 6$7,230 NZD
Retailer 2$7,671 NZD
Retailer 8$7,757 NZD
Retailer 4$8,396 NZD
Retailer 7$8,725 NZD
Retailer 3$9,262 NZD
MOH London$12,877 NZD

33 data points across 8 retailers

9 retailers$5,938 NZD to $12,877 NZD

A
Cheapest Retailer
-
$5,938 NZD
HK$26,100 HKD
A
Retailer 2
-
$7,230 NZD
$4,068 USD
View
A
Retailer 3
-
$7,671 NZD
£3,399 GBP
View
A
Retailer 4
-
$7,757 NZD
SGD 5,898 SGD
View
B+
Retailer 5
-
$8,396 NZD
€4,499 EUR
View
B+
Retailer 6
-
$8,725 NZD
$4,909 USD
View
B+
Retailer 7
-
$8,835 NZD
A$7,648 AUD
View
B+
Retailer 8
-
$9,262 NZD
€4,963 EUR
View
Most Expensive
B
MOH London
8D2B6642B · Nov 1
$12,877 NZD
£5,705 GBP
View
8 more retailers have this diamond
Prices start from $5,938 NZDSave up to $6,940 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
$5,938 NZD