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Cushion|Natural|GIA

1.51ct H SI1 Cushion Natural Diamond

EX • H/SI1 • GIA 6545505052

Certificate GIA 6545505052

Diamond specifications and retailer prices

From $6,743 NZD
$3,794 USD
As of November 2, 2026
Save $7,357 NZD (52%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $14,101 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 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 6545505052. Listed at 20 retailers as of November 1, 2026, with prices from $6,743 to $14,101, a $7,357 spread on the same certified stone. MOH London lists it at $14,101. 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
SymmetryExcellent
FluorescenceStrong
OriginNatural
Grading LabGIA
CertificateGIA 6545505052
Dimensions6.54 × 6.46 × 4.50 mm
L/W Ratio1.01
Top View
6.54 mm6.46 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 6545505052
Side View
Table 62.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 69.6%

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: $14,101 NZD|Low: $6,743 NZD|High: $14,270 NZD|Avg: $9,176 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 9$6,743 NZD
Retailer 7$7,049 NZD
Retailer 10$7,589 NZD
Retailer 8$8,019 NZD
Retailer 11$8,479 NZD
Retailer 2$8,803 NZD
Retailer 6$8,924 NZD
Retailer 3$9,772 NZD
Retailer 4$10,016 NZD
Retailer 5$10,882 NZD
MOH London$14,101 NZD

44 data points across 11 retailers

20 retailers$6,743 NZD to $14,101 NZD

A
Cheapest Retailer
-
$6,743 NZD
$3,794 USD
A
Retailer 2
-
$6,917 NZD
$3,892 USD
View
A
Retailer 3
-
$6,995 NZD
$3,936 USD
View
A
Retailer 4
-
$7,049 NZD
$3,966 USD
View
Final sale: no returns
A
Retailer 5
-
$7,076 NZD
$3,981 USD
View
A
Retailer 6
-
$7,573 NZD
CA$5,918 CAD
View
A
Retailer 7
-
$7,589 NZD
$4,270 USD
View
A
Retailer 8
-
$7,804 NZD
$4,391 USD
View
B+
Retailer 9
-
$8,019 NZD
$4,512 USD
View
B+
Retailer 10
-
$8,152 NZD
$4,587 USD
View
B+
Retailer 11
-
$8,444 NZD
$4,751 USD
View
B+
Retailer 12
-
$8,479 NZD
$4,771 USD
View
B+
Retailer 13
-
$8,803 NZD
£3,900 GBP
View
Retailer 14
-
$8,924 NZD
A$7,725 AUD
View
Price last confirmed 24 days ago
Retailer 15
-
$9,772 NZD
$5,498 USD
View
Price last confirmed 11 days ago
B+
Retailer 16
-
$10,016 NZD
€5,367 EUR
View
B+
Retailer 17
-
$10,191 NZD
$5,734 USD
View
B
Retailer 18
-
$10,882 NZD
ZAR 98,910 ZAR
View
B
Retailer 19
-
$12,812 NZD
$7,209 USD
View
Price last confirmed 7 days ago
Most Expensive
B
MOH London
8012FE3A7 · Nov 1
$14,101 NZD
£6,247 GBP
View
19 more retailers have this diamond
Prices start from $6,743 NZDSave up to $7,357 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
$6,743 NZD