Cushion|Natural|GIA

0.30ct G SI1 Cushion Natural Diamond

ID • G/SI1 • GIA 2566559865

Certificate GIA 2566559865

Diamond specifications and retailer prices

From $395 USD
As of October 28, 2026
Save $471 USD (54%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $866 USD at MOH London · As of October 26, 2026
View at MOH London

About this 0.3ct natural cushion diamond

This 0.3ct 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 2566559865. Listed at 13 retailers as of October 26, 2026, with prices from $395 to $866, a $471 spread on the same certified stone. MOH London lists it at $866. 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

0.30
Carat
G
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle32.3°
OriginNatural
Grading LabGIA
CertificateGIA 2566559865
Dimensions3.83 × 3.77 × 2.47 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizeNone
Top View
3.83 mm3.77 mm0.30 ctG / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566559865
Side View
Table 63.0%Crown 37.6°Girdle: THN-THKPavilion 32.3°Culet: NoneDepth 65.6%

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 28
Current: $866 USD|Low: $280 USD|High: $869 USD|Avg: $538 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 5$280 USD
Retailer 11$395 USD
Retailer 4$446 USD
Retailer 7$497 USD
Retailer 13$507 USD
Retailer 10$514 USD
Retailer 8$525 USD
Retailer 3$531 USD
Retailer 12$567 USD
Retailer 9$592 USD
Retailer 6$697 USD
Retailer 2$762 USD
MOH London$866 USD

13 data points across 13 retailers

13 retailers$395 USD to $866 USD

A
Retailer 1
-
$280 USD
Price last confirmed 14 days ago
A
Retailer 2
-
$395 USD
View
B+
Retailer 3
-
$446 USD
View
Price last confirmed 13 days ago
B+
Retailer 4
-
$497 USD
£392 GBP
View
B+
Retailer 5
-
$507 USD
View
B+
Retailer 6
-
$514 USD
View
B+
Retailer 7
-
$525 USD
£413 GBP
View
B
Retailer 8
-
$531 USD
View
B+
Retailer 9
-
$567 USD
View
B+
Retailer 10
-
$592 USD
ZAR 9,570 ZAR
View
B
Retailer 11
-
$697 USD
€664 EUR
View
B
Retailer 12
-
$762 USD
£600 GBP
View
Most Expensive
B
MOH London
AABEE4D56 · Oct 26
$866 USD
£682 GBP
View
12 more retailers have this diamond
Prices start from $395 USDSave up to $471 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
0.30ct Cushion
$395 USD