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Oval|Natural|GIA

0.51ct G SI1 Oval Natural Diamond

GD • G/SI1 • GIA 7478781643

Certificate GIA 7478781643

Diamond specifications and retailer prices

From $792 SGD
$619 USD
As of November 2, 2026
Save $1,192 SGD (60%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,692 SGD at NZ Jewellers · As of September 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 7478781643. Listed at 15 retailers as of November 1, 2026, with a 151% 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 7478781643
Dimensions6.74 × 4.28 × 2.73 mm
L/W Ratio1.57
Key to symbols
Twinning Wisp, Feather
Top View
6.74 mm4.28 mm0.51 ctG / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7478781643
Side View
Table 63.0%CrownGirdle: Ext. ThickPavilionCulet: NoneDepth 63.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $1,222 SGD|Low: $792 SGD|High: $2,006 SGD|Avg: $1,168 SGD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 5$792 SGD
Retailer 9$795 SGD
Retailer 7$818 SGD
Retailer 2$1,059 SGD
Retailer 8$1,093 SGD
Retailer 1$1,222 SGD
Retailer 6$1,291 SGD
Retailer 4$1,325 SGD
Retailer 3$1,983 SGD

42 data points across 9 retailers

15 retailers$792 SGD to $1,983 SGD

A
Cheapest Retailer
-
$792 SGD
$619 USD
Final sale: no returns
B+
Retailer 2
-
$818 SGD
HK$5,000 HKD
View
Retailer 3
-
$858 SGD
$671 USD
View
Price last confirmed 25 days ago
Retailer 4
-
$858 SGD
$671 USD
View
Price last confirmed 25 days ago
Retailer 5
-
$891 SGD
$697 USD
View
Price last confirmed 34 days ago
Retailer 6
-
$990 SGD
$774 USD
View
Price last confirmed 34 days ago
B
Retailer 7
-
$1,023 SGD
$800 USD
View
B
Retailer 8
-
$1,027 SGD
$803 USD
View
B
Retailer 9
-
$1,059 SGD
£652 GBP
View
B
Retailer 10
-
$1,093 SGD
$855 USD
View
B
Retailer 11
-
$1,222 SGD
€910 EUR
View
Retailer 12
-
$1,291 SGD
A$1,553 AUD
View
Price last confirmed 29 days ago
B
Retailer 13
-
$1,325 SGD
ZAR 16,737 ZAR
View
B
Retailer 14
-
$1,983 SGD
£1,221 GBP
View
Most Expensive
NZ Jewellers
aaa7ece4-b605-4934-88eb-65673b97ee0a · Sep 30
$2,692 SGD
$2,105 USD
View
Price last confirmed 33 days ago
14 more retailers have this diamond
Prices start from $792 SGDSave up to $1,192 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.

A
0.51ct Oval
$792 SGD