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Marquise|Natural|GIA

0.90ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 7553217158

Certificate GIA 7553217158

Diamond specifications and retailer prices

From $3,462 AUD
HK$19,000 HKD
As of November 1, 2026
Save $4,550 AUD (57%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $10,985 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 7553217158. Listed at 16 retailers as of October 30, 2026, with a 131% 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
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7553217158
Dimensions10.32 × 5.13 × 2.99 mm
L/W Ratio2.01
Key to symbols
Crystal, Feather
Top View
10.32 mm5.13 mm0.90 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7553217158
Side View
Table 60.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 58.3%

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: Nov 1
Current: $10,985 AUD|Low: $3,426 AUD|High: $11,125 AUD|Avg: $5,363 AUD|-1.2%
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
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 12$3,462 AUD
Retailer 2$3,477 AUD
Retailer 3$3,887 AUD
Retailer 8$4,123 AUD
Retailer 4$4,244 AUD
Retailer 5$4,279 AUD
Retailer 16$4,598 AUD
Retailer 15$4,776 AUD
Retailer 10$4,812 AUD
Retailer 7$4,817 AUD
Retailer 6$4,973 AUD
Retailer 13$5,306 AUD
Retailer 9$5,383 AUD
Retailer 11$7,691 AUD
Retailer 14$8,012 AUD
Moon Ocean$10,985 AUD

25 data points across 16 retailers

16 retailers$3,462 AUD to $8,012 AUD

A
Cheapest Retailer
-
$3,462 AUD
HK$19,000 HKD
A
Retailer 2
-
$3,477 AUD
₹232,580 INR
View
B+
Retailer 3
-
$3,887 AUD
View
B+
Retailer 4
-
$4,123 AUD
$2,896 USD
View
B+
Retailer 5
-
$4,244 AUD
$2,981 USD
View
Final sale: no returns
B+
Retailer 6
-
$4,279 AUD
$3,006 USD
View
B+
Retailer 7
-
$4,598 AUD
$3,230 USD
View
B+
Retailer 8
-
$4,776 AUD
$3,355 USD
View
B+
Retailer 9
-
$4,812 AUD
£2,661 GBP
View
B+
Retailer 10
-
$4,817 AUD
SGD 4,573 SGD
View
B
Retailer 11
-
$4,973 AUD
$3,493 USD
View
B+
Retailer 12
-
$5,306 AUD
$3,727 USD
View
B+
Retailer 13
-
$5,383 AUD
€3,601 EUR
View
B
Retailer 14
-
$7,691 AUD
£4,254 GBP
View
B
Retailer 15
-
$8,012 AUD
$5,628 USD
View
Most Expensive
Moon Ocean
NVN-98C8394EB-158 · Nov 2
$10,985 AUD
£6,076 GBP
View
Price under review
15 more retailers have this diamond
Prices start from $3,462 AUDSave up to $4,550 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
$3,462 AUD