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Cushion|Natural|GIA

1.50ct I SI1 Cushion Natural Diamond

EX • I/SI1 • GIA 1553442255

Certificate GIA 1553442255

Diamond specifications and retailer prices

From $6,484 NZD
HK$28,500 HKD
As of November 2, 2026
Save $7,028 NZD (52%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $13,713 NZD at Wholesale Diamonds Direct · As of October 23, 2026
View at Wholesale Diamonds Direct

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 1553442255. Listed at 21 retailers as of November 1, 2026, with a 108% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
OriginNatural
Grading LabGIA
CertificateGIA 1553442255
Dimensions7.50 × 5.99 × 4.12 mm
L/W Ratio1.25
Girdle conditionFaceted
Top View
7.50 mm5.99 mm1.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1553442255
Side View
Table 64.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.8%

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: $7,838 NZD|Low: $6,393 NZD|High: $14,502 NZD|Avg: $8,771 NZD|-1.6%
Retailer 1
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
Wholesale Diamonds Direct
November 2, 2026
Retailer 12$6,484 NZD
Retailer 3$6,496 NZD
Retailer 18$6,827 NZD
Retailer 16$7,189 NZD
Retailer 5$7,272 NZD
Retailer 9$7,356 NZD
Retailer 7$7,392 NZD
Retailer 10$7,527 NZD
Retailer 2$7,590 NZD
Retailer 15$7,766 NZD
Retailer 1$7,838 NZD
Retailer 13$8,158 NZD
Retailer 11$8,245 NZD
Retailer 17$8,550 NZD
Retailer 8$8,588 NZD
Retailer 14$9,726 NZD
Retailer 6$10,779 NZD
Retailer 4$13,511 NZD
Wholesale Diamonds Direct$13,713 NZD

19 data points across 19 retailers

21 retailers$6,484 NZD to $13,511 NZD

A
Cheapest Retailer
-
$6,484 NZD
HK$28,500 HKD
A
Retailer 2
-
$6,496 NZD
$3,655 USD
View
A
Retailer 3
-
$6,827 NZD
$3,841 USD
View
A
Retailer 4
-
$7,189 NZD
$4,045 USD
View
Final sale: no returns
A
Retailer 5
-
$7,272 NZD
€3,897 EUR
View
A
Retailer 6
-
$7,356 NZD
$4,139 USD
View
A
Retailer 7
-
$7,392 NZD
$4,159 USD
View
A
Retailer 8
-
$7,527 NZD
$4,235 USD
View
A
Retailer 9
-
$7,590 NZD
A$6,570 AUD
View
A
Retailer 10
-
$7,766 NZD
$4,370 USD
View
A
Retailer 11
-
$7,838 NZD
$4,410 USD
View
A
Retailer 12
-
$8,158 NZD
£3,614 GBP
View
B+
Retailer 13
-
$8,245 NZD
$4,639 USD
View
B+
Retailer 14
-
$8,550 NZD
£3,788 GBP
View
Retailer 15
-
$8,588 NZD
$4,832 USD
View
Price last confirmed 13 days ago
B+
Retailer 16
-
$8,974 NZD
A$7,768 AUD
View
Retailer 17
-
$9,127 NZD
A$7,901 AUD
View
Price last confirmed 23 days ago
B+
Retailer 18
-
$9,726 NZD
€5,212 EUR
View
B+
Retailer 19
-
$10,779 NZD
ZAR 97,981 ZAR
View
B
Retailer 20
-
$13,511 NZD
£5,986 GBP
View
Most Expensive
Wholesale Diamonds Direct
253138994 · Oct 23
$13,713 NZD
$7,715 USD
View
Price last confirmed 9 days ago
20 more retailers have this diamond
Prices start from $6,484 NZDSave up to $7,028 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
$6,484 NZD