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Cushion|Natural|GIA

1.51ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 1425256232

Certificate GIA 1425256232

Diamond specifications and retailer prices

From $8,229 NZD
$4,630 USD
As of November 2, 2026
Save $7,860 NZD (49%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $16,089 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 G 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 1425256232. Listed at 20 retailers as of November 1, 2026, with prices from $8,229 to $16,089, a $7,860 spread on the same certified stone. MOH London lists it at $16,089. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1425256232
Dimensions6.16 × 6.04 × 4.61 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Needle, Indented Natural
Top View
6.16 mm6.04 mm1.51 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1425256232
Side View
Table 59.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 76.4%

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 2
Current: $16,089 NZD|Low: $7,913 NZD|High: $16,283 NZD|Avg: $11,246 NZD|-0.1%
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 10$8,229 NZD
Retailer 6$8,700 NZD
Retailer 8$8,703 NZD
Retailer 11$9,260 NZD
Retailer 7$9,894 NZD
Retailer 4$10,477 NZD
Retailer 9$10,853 NZD
Retailer 2$11,930 NZD
Retailer 5$13,418 NZD
Retailer 3$15,823 NZD
MOH London$16,089 NZD

44 data points across 11 retailers

20 retailers$8,229 NZD to $16,089 NZD

A
Cheapest Retailer
-
$8,229 NZD
$4,630 USD
A
Retailer 2
-
$8,531 NZD
$4,800 USD
View
A
Retailer 3
-
$8,629 NZD
$4,855 USD
View
A
Retailer 4
-
$8,700 NZD
$4,895 USD
View
A
Retailer 5
-
$8,703 NZD
$4,897 USD
View
Final sale: no returns
A
Retailer 6
-
$8,739 NZD
$4,917 USD
View
A
Retailer 7
-
$9,207 NZD
CA$7,195 CAD
View
A
Retailer 8
-
$9,260 NZD
$5,210 USD
View
B+
Retailer 9
-
$9,292 NZD
$5,228 USD
View
B+
Retailer 10
-
$9,775 NZD
$5,500 USD
View
B+
Retailer 11
-
$9,894 NZD
$5,567 USD
View
B+
Retailer 12
-
$10,429 NZD
$5,868 USD
View
B+
Retailer 13
-
$10,477 NZD
£4,642 GBP
View
Retailer 14
-
$10,853 NZD
A$9,394 AUD
View
Price last confirmed 29 days ago
B+
Retailer 15
-
$11,930 NZD
€6,393 EUR
View
Retailer 16
-
$12,043 NZD
$6,776 USD
View
Price last confirmed 10 days ago
B
Retailer 17
-
$12,370 NZD
$6,960 USD
View
B+
Retailer 18
-
$13,418 NZD
ZAR 121,964 ZAR
View
B
Retailer 19
-
$15,823 NZD
$8,903 USD
View
Most Expensive
B
MOH London
C97E3DB6C · Nov 1
$16,089 NZD
£7,128 GBP
View
19 more retailers have this diamond
Prices start from $8,229 NZDSave up to $7,860 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
$8,229 NZD