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Marquise|Natural|GIA

0.90ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 7556563049

Certificate GIA 7556563049

Diamond specifications and retailer prices

From $4,534 AUD
$3,185 USD
As of October 31, 2026
Save $4,452 AUD (50%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $12,024 AUD at Moon Ocean · As of November 2, 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 SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7556563049. Listed at 14 retailers as of October 30, 2026, with a 98% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7556563049
Dimensions9.74 × 5.09 × 3.01 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Indented Natural
Top View
9.74 mm5.09 mm0.90 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 7556563049
Side View
Table 59.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 59.2%

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: Oct 31
Current: $12,024 AUD|Low: $4,513 AUD|High: $12,025 AUD|Avg: $6,388 AUD|+0.2%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 11$4,534 AUD
Retailer 7$4,612 AUD
Retailer 5$4,715 AUD
Retailer 9$4,761 AUD
Retailer 8$4,954 AUD
Retailer 12$5,134 AUD
Retailer 3$5,304 AUD
Retailer 6$5,345 AUD
Retailer 2$6,037 AUD
Retailer 10$7,607 AUD
Retailer 4$8,412 AUD
Retailer 13$8,986 AUD
Moon Ocean$12,024 AUD

24 data points across 13 retailers

14 retailers$4,534 AUD to $8,986 AUD

B+
Cheapest Retailer
-
$4,534 AUD
$3,185 USD
B+
Retailer 2
-
$4,612 AUD
$3,240 USD
View
B+
Retailer 3
-
$4,715 AUD
$3,312 USD
View
Final sale: no returns
B+
Retailer 4
-
$4,761 AUD
$3,344 USD
View
B
Retailer 5
-
$4,954 AUD
$3,480 USD
View
B+
Retailer 6
-
$5,134 AUD
$3,606 USD
View
B
Retailer 7
-
$5,304 AUD
$3,726 USD
View
B
Retailer 8
-
$5,345 AUD
£2,957 GBP
View
Retailer 9
-
$5,446 AUD
View
Price last confirmed 24 days ago
B
Retailer 10
-
$6,037 AUD
€4,039 EUR
View
B
Retailer 11
-
$7,607 AUD
ZAR 86,328 ZAR
View
B
Retailer 12
-
$8,412 AUD
£4,653 GBP
View
B
Retailer 13
-
$8,986 AUD
$6,312 USD
View
Most Expensive
Moon Ocean
NVN-F9A19C58B-049 · Nov 2
$12,024 AUD
£6,651 GBP
View
Price under review
13 more retailers have this diamond
Prices start from $4,534 AUDSave up to $4,452 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
$4,534 AUD