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Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 6541605256

Certificate GIA 6541605256

Diamond specifications and retailer prices

From $5,337 NZD
HK$23,500 HKD
As of November 2, 2026
Save $5,975 NZD (53%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $11,312 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1.5ct natural cushion diamond

This 1.5ct 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 6541605256. Listed at 22 retailers as of November 1, 2026, with prices from $5,337 to $11,312, a $5,975 spread on the same certified stone. MOH London lists it at $11,312. 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

1.50
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Pavilion angle39°
OriginNatural
Grading LabGIA
CertificateGIA 6541605256
Dimensions6.78 × 6.57 × 4.38 mm
L/W Ratio1.03
Top View
6.78 mm6.57 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541605256
Side View
Table 66.0%CrownGirdle: THK-VTKPavilion 39°Culet: NoneDepth 66.7%

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: $11,312 NZD|Low: $5,246 NZD|High: $11,467 NZD|Avg: $6,898 NZD|-1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 2, 2026
Retailer 12$5,337 NZD
Retailer 3$5,350 NZD
Retailer 18$5,632 NZD
Retailer 6$5,711 NZD
Retailer 16$5,749 NZD
Retailer 10$5,953 NZD
Retailer 4$6,048 NZD
Retailer 9$6,070 NZD
Retailer 15$6,423 NZD
Retailer 19$6,441 NZD
Retailer 13$6,525 NZD
Retailer 11$6,743 NZD
Retailer 7$6,891 NZD
Retailer 17$7,034 NZD
Retailer 2$7,063 NZD
Retailer 14$8,048 NZD
Retailer 5$8,383 NZD
Retailer 8$11,066 NZD
MOH London$11,312 NZD

19 data points across 19 retailers

22 retailers$5,337 NZD to $11,312 NZD

A
Cheapest Retailer
-
$5,337 NZD
HK$23,500 HKD
A
Retailer 2
-
$5,350 NZD
$3,015 USD
View
A
Retailer 3
-
$5,632 NZD
$3,174 USD
View
A
Retailer 4
-
$5,711 NZD
$3,219 USD
View
A
Retailer 5
-
$5,749 NZD
$3,240 USD
View
Final sale: no returns
A
Retailer 6
-
$5,953 NZD
$3,355 USD
View
A
Retailer 7
-
$6,048 NZD
€3,246 EUR
View
A
Retailer 8
-
$6,070 NZD
$3,421 USD
View
A
Retailer 9
-
$6,423 NZD
$3,620 USD
View
A
Retailer 10
-
$6,441 NZD
$3,630 USD
View
A
Retailer 11
-
$6,525 NZD
£2,895 GBP
View
A
Retailer 12
-
$6,743 NZD
SGD 5,136 SGD
View
Retailer 13
-
$6,891 NZD
$3,884 USD
View
Price last confirmed 13 days ago
Retailer 14
-
$7,007 NZD
$3,949 USD
View
Price last confirmed 12 days ago
A
Retailer 15
-
$7,034 NZD
£3,121 GBP
View
A
Retailer 16
-
$7,063 NZD
$3,981 USD
View
A
Retailer 17
-
$7,390 NZD
A$6,408 AUD
View
Retailer 18
-
$7,489 NZD
A$6,493 AUD
View
Price last confirmed 24 days ago
B+
Retailer 19
-
$8,048 NZD
€4,320 EUR
View
B+
Retailer 20
-
$8,383 NZD
ZAR 76,327 ZAR
View
Retailer 21
-
$11,066 NZD
$6,237 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
MOH London
8B8AE58D9 · Nov 1
$11,312 NZD
£5,020 GBP
View
21 more retailers have this diamond
Prices start from $5,337 NZDSave up to $5,975 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
1.50ct Cushion
$5,337 NZD