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Marquise|Natural|GIA

0.90ct H SI2 Marquise Natural Diamond

EX • H/SI2 • GIA 2557985642

Certificate GIA 2557985642

Diamond specifications and retailer prices

From $2,475 SGD
$1,935 USD
As of October 30, 2026
Save $2,012 SGD (45%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $4,486 SGD at Riddles Jewelry · As of November 2, 2026
View at Riddles Jewelry

About this 0.9ct natural marquise diamond

This 0.9ct natural marquise sits in the just-under-one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2557985642. Listed at 9 retailers as of October 30, 2026, with prices from $2,475 to $4,486, a $2,012 spread on the same certified stone. Riddles Jewelry lists it at $4,486. 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
H
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2557985642
Dimensions9.63 × 5.07 × 3.14 mm
L/W Ratio1.90
Culet sizeNone
Key to symbols
Crystal, Feather, Knot
Top View
9.63 mm5.07 mm0.90 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 2557985642
Side View
Table 64.0%CrownGirdle: STK-VTKPavilionCulet: NoneDepth 61.9%

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: Oct 30
Current: $4,421 SGD|Low: $2,475 SGD|High: $4,486 SGD|Avg: $3,076 SGD|+0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Riddles Jewelry
November 2, 2026
Retailer 7$2,475 SGD
Retailer 8$2,956 SGD
Retailer 3$3,066 SGD
Retailer 6$3,095 SGD
Retailer 5$3,246 SGD
Retailer 2$4,005 SGD
Retailer 4$4,385 SGD
Retailer 1$4,421 SGD
Riddles Jewelry$4,486 SGD

32 data points across 9 retailers

9 retailers$2,475 SGD to $4,486 SGD

B+
Cheapest Retailer
-
$2,475 SGD
$1,935 USD
B+
Retailer 2
-
$2,956 SGD
View
B
Retailer 3
-
$3,066 SGD
$2,397 USD
View
B+
Retailer 4
-
$3,095 SGD
$2,420 USD
View
B
Retailer 5
-
$3,246 SGD
$2,538 USD
View
B
Retailer 6
-
$3,947 SGD
$3,086 USD
View
B
Retailer 7
-
$4,005 SGD
£2,466 GBP
View
B
Retailer 8
-
$4,421 SGD
€3,292 EUR
View
Most Expensive
B
Riddles Jewelry
1997151045 · Nov 2
$4,486 SGD
$3,508 USD
View
8 more retailers have this diamond
Prices start from $2,475 SGDSave up to $2,012 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
$2,475 SGD