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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 €630 EUR
HK$5,500 HKD
As of November 1, 2026
Save €891 EUR (59%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,521 EUR 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 €630 to €1,521, a €891 spread on the same certified stone. Moon Ocean lists it at €1,521. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €1,521 EUR|Low: €630 EUR|High: €1,594 EUR|Avg: €1,033 EUR|-4.5%
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
November 1, 2026
Retailer 9€630 EUR
Retailer 14€729 EUR
Retailer 13€850 EUR
Retailer 2€866 EUR
Retailer 7€888 EUR
Retailer 12€924 EUR
Retailer 3€944 EUR
Retailer 8€968 EUR
Retailer 4€981 EUR
Retailer 10€1,027 EUR
Retailer 6€1,045 EUR
Retailer 15€1,133 EUR
Retailer 16€1,177 EUR
Retailer 5€1,326 EUR
Retailer 11€1,448 EUR
Moon Ocean€1,521 EUR

24 data points across 16 retailers

18 retailers€630 EUR to €1,521 EUR

A
Cheapest Retailer
-
€630 EUR
HK$5,500 HKD
A
Retailer 2
-
€729 EUR
$815 USD
View
Final sale: no returns
A
Retailer 3
-
€850 EUR
$950 USD
View
A
Retailer 4
-
€866 EUR
$967 USD
View
Retailer 5
-
€888 EUR
SGD 1,341 SGD
View
Price last confirmed 10 days ago
A
Retailer 6
-
€924 EUR
£813 GBP
View
B+
Retailer 7
-
€944 EUR
$1,055 USD
View
A
Retailer 8
-
€968 EUR
SGD 1,462 SGD
View
B+
Retailer 9
-
€981 EUR
$1,096 USD
View
B+
Retailer 10
-
€1,027 EUR
$1,147 USD
View
B+
Retailer 11
-
€1,045 EUR
$1,168 USD
View
B+
Retailer 12
-
€1,133 EUR
View
B+
Retailer 13
-
€1,177 EUR
ZAR 21,251 ZAR
View
B+
Retailer 14
-
€1,192 EUR
A$2,048 AUD
View
Retailer 15
-
€1,229 EUR
A$2,113 AUD
View
Price last confirmed 29 days ago
Retailer 16
-
€1,326 EUR
$1,481 USD
View
Price last confirmed 9 days ago
B+
Retailer 17
-
€1,448 EUR
£1,274 GBP
View
Most Expensive
B+
Moon Ocean
NVN-557560A9C-429 · Nov 1
€1,521 EUR
£1,338 GBP
View
17 more retailers have this diamond
Prices start from €630 EURSave up to €891 EUR

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
€630 EUR