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Oval|Natural|GIA

0.31ct F SI1 Oval Natural Diamond

GD • F/SI1 • GIA 1557804548

Certificate GIA 1557804548

Diamond specifications and retailer prices

From $457 SGD
$357 USD
As of October 31, 2026
Save $565 SGD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,166 SGD at MOH London · As of November 2, 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 1557804548. Listed at 19 retailers as of October 31, 2026, with a 124% 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
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 1557804548
Dimensions5.43 × 3.63 × 2.39 mm
L/W Ratio1.50
Culet sizeNone
Key to symbols
Crystal, Feather, Cloud
Top View
5.43 mm3.63 mm0.31 ctF / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 1557804548
Side View
Table 59.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 65.7%

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: $1,166 SGD|Low: $307 SGD|High: $1,934 SGD|Avg: $686 SGD|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
November 2, 2026
Retailer 12$307 SGD
Retailer 11$383 SGD
Retailer 10$457 SGD
Retailer 16$492 SGD
Retailer 20$497 SGD
Retailer 17$510 SGD
Retailer 7$581 SGD
Retailer 18$584 SGD
Retailer 8$588 SGD
Retailer 9$611 SGD
Retailer 4$615 SGD
Retailer 5$619 SGD
Retailer 13$659 SGD
Retailer 19$692 SGD
Retailer 15$782 SGD
Retailer 14$917 SGD
Retailer 2$1,021 SGD
MOH London$1,166 SGD
Retailer 6$1,559 SGD
Retailer 3$1,934 SGD

18 data points across 20 retailers

19 retailers$457 SGD to $1,021 SGD

B+
Cheapest Retailer
-
$457 SGD
$357 USD
B+
Retailer 2
-
$492 SGD
$385 USD
View
B+
Retailer 3
-
$497 SGD
$389 USD
View
B+
Retailer 4
-
$510 SGD
$399 USD
View
B
Retailer 5
-
$533 SGD
A$641 AUD
View
B
Retailer 6
-
$581 SGD
$454 USD
View
B
Retailer 7
-
$584 SGD
$457 USD
View
B
Retailer 8
-
$588 SGD
$460 USD
View
B
Retailer 9
-
$611 SGD
$478 USD
View
B
Retailer 10
-
$615 SGD
$481 USD
View
B
Retailer 11
-
$619 SGD
$484 USD
View
B
Retailer 12
-
$659 SGD
£406 GBP
View
B
Retailer 13
-
$692 SGD
£426 GBP
View
C
Retailer 14
-
$782 SGD
ZAR 9,884 ZAR
View
B
Retailer 15
-
$917 SGD
€683 EUR
View
B
Retailer 16
-
$1,021 SGD
£629 GBP
View
Most Expensive
MOH London
F109451EE · Nov 2
$1,166 SGD
£718 GBP
View
Price under review
16 more retailers have this diamond
Prices start from $457 SGDSave up to $565 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
$457 SGD