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Round|Natural|GIA

0.90ct D SI2 Round Natural Diamond

EX • D/SI2 • GIA 6552741906

Certificate GIA 6552741906

Diamond specifications and retailer prices

From $3,138 AUD
$2,204 USD
As of October 30, 2026
Save $7,173 AUD (70%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $10,310 AUD at Moon Ocean · As of October 30, 2026
View at Moon Ocean

About this 0.9ct natural round diamond

This 0.9ct natural round sits in the just-under-one-carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6552741906. Listed at 26 retailers as of October 30, 2026, with prices from $3,138 to $10,310, a $7,173 spread on the same certified stone. Moon Ocean lists it at $10,310. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6552741906
Dimensions6.11 × 6.16 × 3.84 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.11 mm6.16 mm0.90 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552741906
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.6%

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 30
Current: $10,310 AUD|Low: $3,138 AUD|High: $10,414 AUD|Avg: $4,663 AUD|-0.9%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 10$3,138 AUD
Retailer 6$3,148 AUD
Retailer 9$3,274 AUD
Retailer 5$3,354 AUD
Retailer 7$3,764 AUD
Retailer 8$3,902 AUD
Retailer 3$4,221 AUD
Retailer 2$4,673 AUD
Retailer 4$6,997 AUD
Moon Ocean$10,310 AUD

41 data points across 10 retailers

26 retailers$3,138 AUD to $10,310 AUD

B+
Cheapest Retailer
-
$3,138 AUD
$2,204 USD
B+
Retailer 2
-
$3,148 AUD
$2,211 USD
View
Final sale: no returns
B+
Retailer 3
-
$3,156 AUD
$2,217 USD
View
B+
Retailer 4
-
$3,250 AUD
$2,283 USD
View
Retailer 5
-
$3,274 AUD
$2,300 USD
View
Price last confirmed 36 days ago
B+
Retailer 6
-
$3,354 AUD
$2,356 USD
View
B+
Retailer 7
-
$3,394 AUD
$2,384 USD
View
B+
Retailer 8
-
$3,599 AUD
$2,528 USD
View
B+
Retailer 9
-
$3,599 AUD
$2,528 USD
View
B+
Retailer 10
-
$3,659 AUD
$2,570 USD
View
B+
Retailer 11
-
$3,764 AUD
$2,644 USD
View
B+
Retailer 12
-
$3,902 AUD
$2,741 USD
View
B+
Retailer 13
-
$3,912 AUD
$2,748 USD
View
B+
Retailer 14
-
$3,932 AUD
CA$3,836 CAD
View
B+
Retailer 15
-
$4,128 AUD
$2,900 USD
View
B+
Retailer 16
-
$4,128 AUD
$2,900 USD
View
B+
Retailer 17
-
$4,153 AUD
$2,917 USD
View
B+
Retailer 18
-
$4,221 AUD
£2,334 GBP
View
B+
Retailer 19
-
$4,257 AUD
$2,990 USD
View
B
Retailer 20
-
$4,551 AUD
$3,197 USD
View
B
Retailer 21
-
$4,673 AUD
€3,126 EUR
View
B
Retailer 22
-
$4,812 AUD
$3,380 USD
View
B
Retailer 23
-
$5,722 AUD
$4,019 USD
View
B
Retailer 24
-
$6,997 AUD
£3,870 GBP
View
B
Retailer 25
-
$8,304 AUD
$5,833 USD
View
Most Expensive
B
Moon Ocean
NVN-8BB9A1DFA-906 · Oct 30
$10,310 AUD
£5,703 GBP
View
25 more retailers have this diamond
Prices start from $3,138 AUDSave up to $7,173 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 Round
$3,138 AUD