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Marquise|Natural|GIA

0.30ct G SI1 Marquise Natural Diamond

EX • G/SI1 • GIA 2566688552

Certificate GIA 2566688552

Diamond specifications and retailer prices

From $456 AUD
$320 USD
As of October 31, 2026
Save $405 AUD (47%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $861 AUD at Yorxs · As of November 2, 2026
View at Yorxs

About this 0.3ct natural marquise diamond

This 0.3ct natural marquise 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 2566688552. Listed at 11 retailers as of October 31, 2026, with prices from $456 to $861, a $405 spread on the same certified stone. Yorxs lists it at $861. 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
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle40.11°
Pavilion angle40.41°
OriginNatural
Grading LabGIA
CertificateGIA 2566688552
Dimensions7.05 × 3.37 × 2.17 mm
L/W Ratio2.09
Culet sizeNone
Top View
7.05 mm3.37 mm0.30 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2566688552
Side View
Table 58.0%Crown 40.11°Girdle: MED-VTKPavilion 40.41°Culet: NoneDepth 64.6%

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: Oct 31
Current: $650 AUD|Low: $456 AUD|High: $861 AUD|Avg: $621 AUD|+6.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Yorxs
November 2, 2026
Retailer 8$456 AUD
Retailer 9$486 AUD
Retailer 2$505 AUD
Retailer 5$568 AUD
Retailer 3$625 AUD
Retailer 6$632 AUD
Retailer 1$650 AUD
Retailer 4$680 AUD
Retailer 7$722 AUD
Yorxs$861 AUD

11 data points across 10 retailers

11 retailers$456 AUD to $861 AUD

A
Cheapest Retailer
-
$456 AUD
$320 USD
B+
Retailer 2
-
$486 AUD
SGD 461 SGD
View
B+
Retailer 3
-
$505 AUD
$355 USD
View
B+
Retailer 4
-
$550 AUD
SGD 522 SGD
View
B+
Retailer 5
-
$568 AUD
$399 USD
View
B
Retailer 6
-
$625 AUD
£345 GBP
View
B
Retailer 7
-
$632 AUD
$444 USD
View
B
Retailer 8
-
$650 AUD
£360 GBP
View
B
Retailer 9
-
$680 AUD
$478 USD
View
B
Retailer 10
-
$722 AUD
$507 USD
View
Most Expensive
B
Yorxs
622050056 · Nov 2
$861 AUD
€576 EUR
View
10 more retailers have this diamond
Prices start from $456 AUDSave up to $405 AUD

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 Marquise
$456 AUD