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Oval|Natural|GIA

0.31ct F SI1 Oval Natural Diamond

GD • F/SI1 • GIA 2558291108

Certificate GIA 2558291108

Diamond specifications and retailer prices

From $432 SGD
$338 USD
As of November 1, 2026
Save $621 SGD (59%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,202 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 0.31ct natural oval diamond

This 0.31ct natural oval sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2558291108. Listed at 16 retailers as of November 1, 2026, with a 144% 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

0.31
Carat
F
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2558291108
Dimensions5.39 × 3.83 × 2.37 mm
L/W Ratio1.41
Culet sizeNone
Key to symbols
Feather, Cloud, Crystal
Top View
5.39 mm3.83 mm0.31 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2558291108
Side View
Table 62.0%CrownGirdle: MED-THKPavilionCulet: 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: Nov 1
Current: $1,202 SGD|Low: $432 SGD|High: $1,217 SGD|Avg: $864 SGD|-1.2%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 2, 2026
Retailer 6$432 SGD
Retailer 9$560 SGD
Retailer 4$681 SGD
Retailer 5$807 SGD
Retailer 8$833 SGD
Retailer 3$843 SGD
Retailer 7$944 SGD
Retailer 2$1,053 SGD
Retailer 10$1,155 SGD
MOH London$1,202 SGD

38 data points across 10 retailers

16 retailers$432 SGD to $1,053 SGD

B+
Cheapest Retailer
-
$432 SGD
$338 USD
B
Retailer 2
-
$521 SGD
$407 USD
View
B
Retailer 3
-
$524 SGD
HK$3,200 HKD
View
B
Retailer 4
-
$560 SGD
$438 USD
View
B
Retailer 5
-
$600 SGD
$469 USD
View
B
Retailer 6
-
$681 SGD
£419 GBP
View
B
Retailer 7
-
$688 SGD
$538 USD
View
Retailer 8
-
$736 SGD
£453 GBP
View
Price last confirmed 37 days ago
B
Retailer 9
-
$807 SGD
ZAR 10,189 ZAR
View
Retailer 10
-
$833 SGD
A$1,002 AUD
View
Price last confirmed 29 days ago
B
Retailer 11
-
$843 SGD
€628 EUR
View
C
Retailer 12
-
$944 SGD
$738 USD
View
B
Retailer 13
-
$1,053 SGD
£648 GBP
View
Retailer 14
-
$1,155 SGD
€860 EUR
View
Price under review
Most Expensive
MOH London
617BD66E4 · Nov 1
$1,202 SGD
£740 GBP
View
Price under review
14 more retailers have this diamond
Prices start from $432 SGDSave up to $621 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+
0.31ct Oval
$432 SGD