Cushion|Natural|GIA

0.90ct J SI1 Cushion Natural Diamond

EX • J/SI1 • GIA 1543517429

Certificate GIA 1543517429

Diamond specifications and retailer prices

From $717 USD
HK$5,600 HKD
As of October 31, 2026
Save $1,017 USD (59%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,733 USD at Moon Ocean · As of October 30, 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 October 30, 2026, with prices from $717 to $1,733, a $1,017 spread on the same certified stone. Moon Ocean lists it at $1,733. 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
Color
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $1,733 USD|Low: $704 USD|High: $1,781 USD|Avg: $1,149 USD|-2.5%
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
October 31, 2026
Retailer 2$717 USD
Retailer 16$828 USD
Retailer 5$960 USD
Retailer 14$982 USD
Retailer 6$992 USD
Retailer 10$1,050 USD
Retailer 12$1,055 USD
Retailer 8$1,082 USD
Retailer 13$1,096 USD
Retailer 7$1,161 USD
Retailer 4$1,168 USD
Retailer 9$1,265 USD
Retailer 11$1,315 USD
Retailer 3$1,481 USD
Retailer 15$1,654 USD
Moon Ocean$1,733 USD

24 data points across 16 retailers

18 retailers$717 USD to $1,733 USD

A
Cheapest Retailer
-
$717 USD
HK$5,600 HKD
A
Retailer 2
-
$828 USD
View
Final sale: no returns
A
Retailer 3
-
$960 USD
View
A
Retailer 4
-
$982 USD
View
Retailer 5
-
$992 USD
SGD 1,341 SGD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$1,050 USD
£827 GBP
View
B+
Retailer 7
-
$1,055 USD
View
A
Retailer 8
-
$1,082 USD
SGD 1,462 SGD
View
B+
Retailer 9
-
$1,096 USD
View
B+
Retailer 10
-
$1,161 USD
View
B+
Retailer 11
-
$1,168 USD
View
B+
Retailer 12
-
$1,265 USD
€1,205 EUR
View
B+
Retailer 13
-
$1,315 USD
ZAR 21,251 ZAR
View
B+
Retailer 14
-
$1,331 USD
A$2,048 AUD
View
Retailer 15
-
$1,373 USD
A$2,113 AUD
View
Price last confirmed 27 days ago
Retailer 16
-
$1,481 USD
View
Price last confirmed 7 days ago
Retailer 17
-
$1,654 USD
£1,302 GBP
View
Price last confirmed 10 days ago
Most Expensive
B
Moon Ocean
NVN-557560A9C-429 · Oct 30
$1,733 USD
£1,365 GBP
View
17 more retailers have this diamond
Prices start from $717 USDSave up to $1,017 USD

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
$717 USD