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Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

GD • H/SI1 • GIA 5436497455

Certificate GIA 5436497455

Diamond specifications and retailer prices

From $5,451 NZD
$3,067 USD
As of October 31, 2026
Save $6,410 NZD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $11,861 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 standard cut grade stated by the retailer rather than the lab and certified by GIA 5436497455. Listed at 20 retailers as of October 31, 2026, with prices from $5,451 to $11,861, a $6,410 spread on the same certified stone. MOH London lists it at $11,861. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
H
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5436497455
Dimensions6.39 × 6.28 × 4.34 mm
L/W Ratio1.02
Top View
6.39 mm6.28 mm1.51 ctH / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5436497455
Side View
Table 65.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.1%

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: Oct 31
Current: $11,861 NZD|Low: $5,451 NZD|High: $12,004 NZD|Avg: $7,394 NZD|-0.9%
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 8$5,451 NZD
Retailer 10$5,572 NZD
Retailer 11$5,931 NZD
Retailer 9$6,165 NZD
Retailer 7$6,425 NZD
Retailer 2$6,683 NZD
Retailer 5$7,255 NZD
Retailer 3$7,605 NZD
Retailer 4$8,023 NZD
Retailer 6$8,718 NZD
MOH London$11,861 NZD

34 data points across 11 retailers

20 retailers$5,451 NZD to $11,861 NZD

A
Cheapest Retailer
-
$5,451 NZD
$3,067 USD
A
Retailer 2
-
$5,572 NZD
$3,135 USD
View
B+
Retailer 3
-
$5,703 NZD
$3,209 USD
View
B+
Retailer 4
-
$5,931 NZD
$3,337 USD
View
Final sale: no returns
A
Retailer 5
-
$6,165 NZD
$3,469 USD
View
B+
Retailer 6
-
$6,176 NZD
$3,475 USD
View
B+
Retailer 7
-
$6,357 NZD
$3,577 USD
View
B+
Retailer 8
-
$6,425 NZD
$3,615 USD
View
B+
Retailer 9
-
$6,431 NZD
$3,619 USD
View
B+
Retailer 10
-
$6,683 NZD
£2,961 GBP
View
B+
Retailer 11
-
$6,867 NZD
$3,864 USD
View
B+
Retailer 12
-
$7,255 NZD
£3,214 GBP
View
B+
Retailer 13
-
$7,269 NZD
$4,090 USD
View
B+
Retailer 14
-
$7,269 NZD
$4,090 USD
View
B+
Retailer 15
-
$7,518 NZD
$4,230 USD
View
Retailer 16
-
$7,605 NZD
A$6,583 AUD
View
Price last confirmed 29 days ago
B+
Retailer 17
-
$8,023 NZD
€4,299 EUR
View
Retailer 18
-
$8,028 NZD
$4,517 USD
View
Price last confirmed 10 days ago
B+
Retailer 19
-
$8,718 NZD
ZAR 79,243 ZAR
View
Most Expensive
B
MOH London
595F6FEA4 · Nov 2
$11,861 NZD
£5,255 GBP
View
19 more retailers have this diamond
Prices start from $5,451 NZDSave up to $6,410 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
$5,451 NZD