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Cushion|Natural|GIA

0.40ct G SI1 Cushion Natural Diamond

EX • G/SI1 • GIA 1559692402

Certificate GIA 1559692402

Diamond specifications and retailer prices

From €377 EUR
HK$3,300 HKD
As of October 27, 2026
Save €333 EUR (47%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: €710 EUR at Yorxs · As of October 27, 2026
View at Yorxs

About this 0.4ct natural cushion diamond

This 0.4ct natural cushion sits in the sub-half-carat band, graded G 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 1559692402. Listed at 5 retailers as of October 27, 2026, with prices from €377 to €710, a €333 spread on the same certified stone. Yorxs lists it at €710. 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

0.40
Carat
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1559692402
Dimensions4.42 × 4.38 × 2.97 mm
L/W Ratio1.01
Top View
4.42 mm4.38 mm0.40 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1559692402
Side View
Table 66.0%CrownGirdle: THN-MEDPavilionCulet: NoneDepth 67.8%

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 27
Current: €600 EUR|Low: €377 EUR|High: €784 EUR|Avg: €577 EUR|-23.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Yorxs
October 27, 2026
Retailer 4€377 EUR
Retailer 3€591 EUR
Retailer 2€600 EUR
Retailer 1€600 EUR
Yorxs€710 EUR

15 data points across 5 retailers

5 retailers€377 EUR to €710 EUR

A
Cheapest Retailer
-
€377 EUR
HK$3,300 HKD
B+
Retailer 2
-
€591 EUR
$663 USD
View
B+
Retailer 3
-
€600 EUR
$673 USD
View
Price last confirmed 7 days ago
B+
Retailer 4
-
€600 EUR
£530 GBP
View
Most Expensive
B+
Yorxs
0A4A6C4C9 · Oct 27
€710 EUR
View
4 more retailers have this diamond
Prices start from €377 EURSave up to €333 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
0.40ct Cushion
€377 EUR