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Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 2225656240

Certificate GIA 2225656240

Diamond specifications and retailer prices

From $12,480 NZD
$7,022 USD
As of November 2, 2026
Save $10,974 NZD (47%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $23,454 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 2225656240. Listed at 24 retailers as of November 2, 2026, with prices from $12,480 to $23,454, a $10,974 spread on the same certified stone. MOH London lists it at $23,454. 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
SymmetryVery Good
FluorescenceNone
Crown angle35.57°
Pavilion angle40.44°
OriginNatural
Grading LabGIA
CertificateGIA 2225656240
Dimensions6.79 × 6.63 × 4.44 mm
L/W Ratio1.02
Culet sizeNone
Key to symbols
Crystal, Feather, Needle
Top View
6.79 mm6.63 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2225656240
Side View
Table 68.0%Crown 35.57°Girdle: THK-VTKPavilion 40.44°Culet: NoneDepth 67.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $23,454 NZD|Low: $12,265 NZD|High: $23,736 NZD|Avg: $16,088 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 3, 2026
Retailer 3$12,480 NZD
Retailer 7$12,557 NZD
Retailer 9$13,177 NZD
Retailer 10$14,073 NZD
Retailer 11$14,074 NZD
Retailer 8$14,190 NZD
Retailer 2$15,709 NZD
Retailer 6$15,868 NZD
Retailer 4$18,384 NZD
Retailer 5$20,675 NZD
MOH London$23,454 NZD

44 data points across 11 retailers

24 retailers$12,480 NZD to $23,454 NZD

B+
Cheapest Retailer
-
$12,480 NZD
$7,022 USD
B+
Retailer 2
-
$12,557 NZD
$7,065 USD
View
B
Retailer 3
-
$13,088 NZD
$7,364 USD
View
B
Retailer 4
-
$13,137 NZD
A$11,372 AUD
View
B
Retailer 5
-
$13,177 NZD
$7,414 USD
View
B
Retailer 6
-
$13,545 NZD
$7,621 USD
View
B
Retailer 7
-
$14,014 NZD
$7,885 USD
View
B
Retailer 8
-
$14,073 NZD
$7,918 USD
View
Final sale: no returns
B
Retailer 9
-
$14,074 NZD
$7,919 USD
View
B
Retailer 10
-
$14,190 NZD
$7,984 USD
View
B
Retailer 11
-
$14,997 NZD
$8,438 USD
View
B
Retailer 12
-
$15,126 NZD
CA$11,820 CAD
View
B
Retailer 13
-
$15,455 NZD
A$13,378 AUD
View
B
Retailer 14
-
$15,491 NZD
$8,716 USD
View
B
Retailer 15
-
$15,709 NZD
£6,959 GBP
View
Retailer 16
-
$15,868 NZD
A$13,736 AUD
View
Price last confirmed 10 days ago
B
Retailer 17
-
$16,476 NZD
$9,270 USD
View
B
Retailer 18
-
$16,476 NZD
$9,270 USD
View
B
Retailer 19
-
$16,833 NZD
$9,471 USD
View
B
Retailer 20
-
$17,027 NZD
$9,580 USD
View
B
Retailer 21
-
$18,384 NZD
€9,851 EUR
View
Retailer 22
-
$18,528 NZD
$10,425 USD
View
Price last confirmed 10 days ago
B
Retailer 23
-
$20,675 NZD
ZAR 187,930 ZAR
View
Most Expensive
B
MOH London
2FED25E2D · Nov 2
$23,454 NZD
£10,391 GBP
View
23 more retailers have this diamond
Prices start from $12,480 NZDSave up to $10,974 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.

B+
1.51ct Cushion
$12,480 NZD