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Marquise|Natural|GIA

0.90ct D SI2 Marquise Natural Diamond

GD • D/SI2 • GIA 6441120990

Certificate GIA 6441120990

Diamond specifications and retailer prices

From $2,923 AUD
$2,053 USD
As of November 1, 2026
Save $5,453 AUD (65%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,375 AUD at Moon Ocean · As of November 1, 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 D colour (colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6441120990. Listed at 13 retailers as of November 1, 2026, with prices from $2,923 to $8,375, a $5,453 spread on the same certified stone. Moon Ocean lists it at $8,375. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.90
Carat
D
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryGood
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6441120990
Dimensions9.55 × 4.82 × 3.30 mm
L/W Ratio1.98
Top View
9.55 mm4.82 mm0.90 ctD / SI2
OriginNatural
CutGood
PolishExcellent
SymmetryGood
FluorescenceFaint
CertificateGIA 6441120990
Side View
Table 57.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 68.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $8,375 AUD|Low: $3,236 AUD|High: $8,490 AUD|Avg: $4,785 AUD|-0.3%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 6$3,236 AUD
Retailer 5$3,385 AUD
Retailer 2$3,522 AUD
Retailer 4$4,042 AUD
Retailer 3$5,670 AUD
Moon Ocean$8,375 AUD

43 data points across 6 retailers

13 retailers$2,923 AUD to $8,375 AUD

B+
Cheapest Retailer
-
$2,923 AUD
$2,053 USD
B+
Retailer 2
-
$3,236 AUD
$2,273 USD
View
B+
Retailer 3
-
$3,236 AUD
$2,273 USD
View
B+
Retailer 4
-
$3,361 AUD
$2,361 USD
View
B+
Retailer 5
-
$3,385 AUD
$2,378 USD
View
B+
Retailer 6
-
$3,404 AUD
$2,391 USD
View
B+
Retailer 7
-
$3,435 AUD
$2,413 USD
View
B+
Retailer 8
-
$3,522 AUD
£1,948 GBP
View
B
Retailer 9
-
$3,734 AUD
$2,623 USD
View
B
Retailer 10
-
$4,042 AUD
€2,704 EUR
View
B
Retailer 11
-
$5,670 AUD
£3,136 GBP
View
C
Retailer 12
-
$6,766 AUD
$4,753 USD
View
Most Expensive
C
Moon Ocean
NVN-D363EBE25-990 · Nov 1
$8,375 AUD
£4,632 GBP
View
12 more retailers have this diamond
Prices start from $2,923 AUDSave up to $5,453 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.

B+
0.90ct Marquise
$2,923 AUD