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Cushion|Natural|GIA

0.90ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 1543517429

Certificate GIA 1543517429

Diamond specifications and retailer prices

From $1,249 NZD
HK$5,500 HKD
As of November 1, 2026
Save $1,766 NZD (59%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $3,015 NZD at Moon Ocean · As of November 1, 2026
View at Moon Ocean

About this 0.9ct natural cushion diamond

This 0.9ct natural cushion sits in the just-under-one-carat band, graded J 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 1543517429. Listed at 18 retailers as of November 1, 2026, with prices from $1,249 to $3,015, a $1,766 spread on the same certified stone. Moon Ocean lists it at $3,015. 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

0.90
Carat
J
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Pavilion angle39.9°
OriginNatural
Grading LabGIA
CertificateGIA 1543517429
Dimensions5.80 × 5.57 × 3.69 mm
L/W Ratio1.04
Girdle conditionFaceted
Top View
5.80 mm5.57 mm0.90 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1543517429
Side View
Table 66.0%CrownGirdle: MED-VTKPavilion 39.9°Culet: NoneDepth 66.2%

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 1
Current: $3,015 NZD|Low: $1,249 NZD|High: $3,160 NZD|Avg: $2,050 NZD|-4.4%
Moon Ocean
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
November 1, 2026
Retailer 2$1,249 NZD
Retailer 13$1,446 NZD
Retailer 12$1,686 NZD
Retailer 4$1,742 NZD
Retailer 7$1,761 NZD
Retailer 11$1,831 NZD
Retailer 16$1,872 NZD
Retailer 8$1,920 NZD
Retailer 3$1,945 NZD
Retailer 9$2,035 NZD
Retailer 6$2,072 NZD
Retailer 14$2,245 NZD
Retailer 15$2,334 NZD
Retailer 5$2,628 NZD
Retailer 10$2,871 NZD
Moon Ocean$3,015 NZD

24 data points across 16 retailers

18 retailers$1,249 NZD to $3,015 NZD

A
Cheapest Retailer
-
$1,249 NZD
HK$5,500 HKD
A
Retailer 2
-
$1,446 NZD
$815 USD
View
Final sale: no returns
A
Retailer 3
-
$1,686 NZD
$950 USD
View
A
Retailer 4
-
$1,742 NZD
$982 USD
View
Retailer 5
-
$1,761 NZD
SGD 1,341 SGD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$1,831 NZD
£813 GBP
View
B+
Retailer 7
-
$1,872 NZD
$1,055 USD
View
A
Retailer 8
-
$1,920 NZD
SGD 1,462 SGD
View
B+
Retailer 9
-
$1,945 NZD
$1,096 USD
View
B+
Retailer 10
-
$2,035 NZD
$1,147 USD
View
B+
Retailer 11
-
$2,072 NZD
$1,168 USD
View
B+
Retailer 12
-
$2,245 NZD
€1,205 EUR
View
B+
Retailer 13
-
$2,334 NZD
ZAR 21,251 ZAR
View
B+
Retailer 14
-
$2,362 NZD
A$2,048 AUD
View
Retailer 15
-
$2,437 NZD
A$2,113 AUD
View
Price last confirmed 28 days ago
Retailer 16
-
$2,628 NZD
$1,481 USD
View
Price last confirmed 9 days ago
B+
Retailer 17
-
$2,871 NZD
£1,274 GBP
View
Most Expensive
B+
Moon Ocean
NVN-557560A9C-429 · Nov 1
$3,015 NZD
£1,338 GBP
View
17 more retailers have this diamond
Prices start from $1,249 NZDSave up to $1,766 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
0.90ct Cushion
$1,249 NZD