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Oval|Natural|GIA

0.51ct G SI1 Oval Natural Diamond

GD • G/SI1 • GIA 1557236320

Certificate GIA 1557236320

Diamond specifications and retailer prices

From $807 SGD
$631 USD
As of November 2, 2026
Save $1,214 SGD (60%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,745 SGD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1557236320. Listed at 16 retailers as of November 2, 2026, with a 150% 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

0.51
Carat
G
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1557236320
Dimensions6.54 × 4.42 × 2.77 mm
L/W Ratio1.48
Key to symbols
Cloud, Crystal
Top View
6.54 mm4.42 mm0.51 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1557236320
Side View
Table 60.0%CrownGirdle: Sli. Thick - ThickPavilionCulet: NoneDepth 62.8%

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 2
Current: $2,745 SGD|Low: $740 SGD|High: $2,745 SGD|Avg: $1,181 SGD
NZ Jewellers
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
November 2, 2026
Retailer 4$807 SGD
Retailer 13$851 SGD
Retailer 17$875 SGD
Retailer 18$875 SGD
Retailer 8$876 SGD
Retailer 16$909 SGD
Retailer 3$1,010 SGD
Retailer 10$1,014 SGD
Retailer 7$1,036 SGD
Retailer 9$1,044 SGD
Retailer 2$1,074 SGD
Retailer 11$1,080 SGD
Retailer 6$1,106 SGD
Retailer 14$1,246 SGD
Retailer 5$1,316 SGD
Retailer 15$1,351 SGD
Retailer 12$2,021 SGD
NZ Jewellers$2,745 SGD

29 data points across 18 retailers

16 retailers$807 SGD to $2,021 SGD

B+
Cheapest Retailer
-
$807 SGD
$631 USD
Final sale: no returns
B+
Retailer 2
-
$851 SGD
HK$5,200 HKD
View
B+
Retailer 3
-
$875 SGD
$684 USD
View
B+
Retailer 4
-
$875 SGD
$684 USD
View
B+
Retailer 5
-
$909 SGD
$711 USD
View
B+
Retailer 6
-
$1,010 SGD
$790 USD
View
B
Retailer 7
-
$1,036 SGD
$810 USD
View
B
Retailer 8
-
$1,044 SGD
$816 USD
View
B
Retailer 9
-
$1,074 SGD
£661 GBP
View
B
Retailer 10
-
$1,080 SGD
£665 GBP
View
B
Retailer 11
-
$1,106 SGD
$865 USD
View
B
Retailer 12
-
$1,246 SGD
€928 EUR
View
Retailer 13
-
$1,316 SGD
A$1,583 AUD
View
Price last confirmed 28 days ago
B
Retailer 14
-
$1,351 SGD
ZAR 17,064 ZAR
View
B
Retailer 15
-
$2,021 SGD
£1,244 GBP
View
Most Expensive
NZ Jewellers
33e7d847-8cda-4ced-9bd2-7b92ebc57310 · Oct 30
$2,745 SGD
$2,146 USD
View
Price under review
15 more retailers have this diamond
Prices start from $807 SGDSave up to $1,214 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+
0.51ct Oval
$807 SGD