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Marquise|Natural|GIA

0.90ct E SI2 Marquise Natural Diamond

ID • E/SI2 • GIA 6243100107

Certificate GIA 6243100107

Diamond specifications and retailer prices

From $2,839 AUD
$1,994 USD
As of October 30, 2026
Save $5,150 AUD (64%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $7,988 AUD at Moon Ocean · As of October 30, 2026
View at Moon Ocean

About this 0.9ct natural marquise diamond

This 0.9ct natural marquise sits in the just-under-one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6243100107. Listed at 11 retailers as of October 30, 2026, with prices from $2,839 to $7,988, a $5,150 spread on the same certified stone. Moon Ocean lists it at $7,988. 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
E
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6243100107
Dimensions9.09 × 5.07 × 3.20 mm
L/W Ratio1.79
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather
Top View
9.09 mm5.07 mm0.90 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6243100107
Side View
Table 63.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 63.2%

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 30
Current: $7,988 AUD|Low: $2,839 AUD|High: $8,607 AUD|Avg: $4,259 AUD|-7.2%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 11$2,839 AUD
Retailer 5$3,078 AUD
Retailer 8$3,078 AUD
Retailer 9$3,220 AUD
Retailer 2$3,377 AUD
Retailer 3$3,459 AUD
Retailer 7$3,550 AUD
Retailer 4$3,842 AUD
Retailer 10$5,399 AUD
Retailer 6$6,435 AUD
Moon Ocean$7,988 AUD

16 data points across 11 retailers

11 retailers$2,839 AUD to $7,988 AUD

A
Cheapest Retailer
-
$2,839 AUD
$1,994 USD
Final sale: no returns
A
Retailer 2
-
$3,078 AUD
$2,162 USD
View
A
Retailer 3
-
$3,078 AUD
$2,162 USD
View
A
Retailer 4
-
$3,220 AUD
$2,262 USD
View
A
Retailer 5
-
$3,377 AUD
£1,868 GBP
View
B+
Retailer 6
-
$3,459 AUD
$2,430 USD
View
B+
Retailer 7
-
$3,550 AUD
$2,494 USD
View
B+
Retailer 8
-
$3,842 AUD
€2,570 EUR
View
B
Retailer 9
-
$5,399 AUD
£2,986 GBP
View
B
Retailer 10
-
$6,435 AUD
$4,520 USD
View
Most Expensive
B
Moon Ocean
NVN-07388A7A3-107 · Oct 30
$7,988 AUD
£4,418 GBP
View
10 more retailers have this diamond
Prices start from $2,839 AUDSave up to $5,150 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
0.90ct Marquise
$2,839 AUD