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Marquise|Natural|GIA

0.90ct I SI2 Marquise Natural Diamond

VG • I/SI2 • GIA 2231765227

Certificate GIA 2231765227

Diamond specifications and retailer prices

From $2,720 SGD
$2,127 USD
As of November 1, 2026
Save $4,231 SGD (61%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,604 SGD 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 2231765227. Listed at 12 retailers as of October 30, 2026, with a 156% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle30.91°
Pavilion angle38.25°
OriginNatural
Grading LabGIA
CertificateGIA 2231765227
Dimensions10.89 × 5.02 × 2.81 mm
L/W Ratio2.17
Girdle conditionVery Thick
Key to symbols
Twinning Wisp
Top View
10.89 mm5.02 mm0.90 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2231765227
Side View
Table 59.0%Crown 30.91°GirdlePavilion 38.25°Culet: NoneDepth 55.9%

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: $8,604 SGD|Low: $2,720 SGD|High: $8,714 SGD|Avg: $4,454 SGD|-1.3%
Moon Ocean
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5$2,720 SGD
Retailer 7$3,151 SGD
Retailer 6$3,440 SGD
Retailer 3$3,524 SGD
Retailer 2$4,152 SGD
Retailer 4$5,857 SGD
Moon Ocean$8,604 SGD

42 data points across 7 retailers

12 retailers$2,720 SGD to $6,951 SGD

B+
Cheapest Retailer
-
$2,720 SGD
$2,127 USD
B
Retailer 2
-
$3,012 SGD
$2,355 USD
View
B
Retailer 3
-
$3,012 SGD
$2,355 USD
View
B
Retailer 4
-
$3,074 SGD
$2,404 USD
View
B
Retailer 5
-
$3,151 SGD
$2,464 USD
View
B
Retailer 6
-
$3,440 SGD
$2,690 USD
View
B
Retailer 7
-
$3,476 SGD
$2,718 USD
View
B
Retailer 8
-
$3,524 SGD
£2,170 GBP
View
B
Retailer 9
-
$4,152 SGD
€3,092 EUR
View
B
Retailer 10
-
$5,857 SGD
£3,606 GBP
View
C
Retailer 11
-
$6,951 SGD
$5,435 USD
View
Most Expensive
Moon Ocean
NVN-892AB1B36-227 · Nov 2
$8,604 SGD
£5,297 GBP
View
Price under review
11 more retailers have this diamond
Prices start from $2,720 SGDSave up to $4,231 SGD

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
$2,720 SGD