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Marquise|Natural|GIA

0.90ct D SI1 Marquise Natural Diamond

GD • D/SI1 • GIA 2566609346

Certificate GIA 2566609346

Diamond specifications and retailer prices

From $3,035 SGD
As of October 31, 2026
Save $2,632 SGD (46%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $5,667 SGD at Helzberg Diamonds · As of November 2, 2026
View at Helzberg Diamonds

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 standard cut grade stated by the retailer rather than the lab and certified by GIA 2566609346. Listed at 13 retailers as of October 31, 2026, with prices from $3,035 to $5,667, a $2,632 spread on the same certified stone. Helzberg Diamonds lists it at $5,667. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle39.22°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 2566609346
Dimensions9.00 × 4.94 × 3.26 mm
L/W Ratio1.82
Culet sizeNone
Top View
9.00 mm4.94 mm0.90 ctD / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566609346
Side View
Table 59.0%Crown 39.22°Girdle: STK-VTKPavilion 40.2°Culet: NoneDepth 66.1%

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: $5,667 SGD|Low: $3,239 SGD|High: $5,667 SGD|Avg: $4,021 SGD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 12$3,239 SGD
Retailer 10$3,248 SGD
Retailer 9$3,273 SGD
Retailer 11$3,297 SGD
Retailer 5$3,530 SGD
Retailer 4$3,589 SGD
Retailer 6$3,866 SGD
Retailer 3$4,013 SGD
Retailer 2$4,246 SGD
Retailer 8$5,025 SGD
Retailer 7$5,338 SGD
Helzberg Diamonds$5,667 SGD

18 data points across 12 retailers

13 retailers$3,035 SGD to $5,667 SGD

B+
Cheapest Retailer
-
$3,035 SGD
B+
Retailer 2
-
$3,239 SGD
$2,533 USD
View
B+
Retailer 3
-
$3,248 SGD
$2,540 USD
View
B+
Retailer 4
-
$3,273 SGD
$2,559 USD
View
B+
Retailer 5
-
$3,297 SGD
$2,578 USD
View
B+
Retailer 6
-
$3,530 SGD
£2,174 GBP
View
B
Retailer 7
-
$3,589 SGD
View
B
Retailer 8
-
$3,866 SGD
$3,023 USD
View
B
Retailer 9
-
$4,013 SGD
$3,138 USD
View
B
Retailer 10
-
$4,246 SGD
€3,162 EUR
View
B
Retailer 11
-
$5,025 SGD
$3,929 USD
View
B
Retailer 12
-
$5,338 SGD
$4,174 USD
View
Most Expensive
C
Helzberg Diamonds
XZRILMMMGPJKM · Nov 2
$5,667 SGD
$4,431 USD
View
12 more retailers have this diamond
Prices start from $3,035 SGDSave up to $2,632 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
$3,035 SGD