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Oval|Natural|GIA

0.51ct H SI2 Oval Natural Diamond

GD • H/SI2 • GIA 1525115355

Certificate GIA 1525115355

Diamond specifications and retailer prices

From $660 SGD
As of November 6, 2026
Save $992 SGD (60%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,243 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 1525115355. Listed at 11 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
H
Colour
SI2
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1525115355
Dimensions6.86 × 4.35 × 2.69 mm
L/W Ratio1.58
Key to symbols
Crystal, Feather
Top View
6.86 mm4.35 mm0.51 ctH / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1525115355
Side View
Table 54.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 61.8%

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 6
Current: $895 SGD|Low: $605 SGD|High: $1,671 SGD|Avg: $905 SGD|+5.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 5$660 SGD
Retailer 8$715 SGD
Retailer 10$770 SGD
Retailer 6$797 SGD
Retailer 2$804 SGD
Retailer 9$825 SGD
Retailer 1$895 SGD
Retailer 7$936 SGD
Retailer 4$1,061 SGD
Retailer 3$1,652 SGD

41 data points across 10 retailers

11 retailers$660 SGD to $1,652 SGD

B+
Cheapest Retailer
-
$660 SGD
Final sale: no returns
Retailer 2
-
$715 SGD
View
Price last confirmed 29 days ago
Retailer 3
-
$770 SGD
View
Price last confirmed 29 days ago
Retailer 4
-
$770 SGD
View
Price last confirmed 38 days ago
B+
Retailer 5
-
$804 SGD
View
Retailer 6
-
$825 SGD
View
Price last confirmed 38 days ago
B
Retailer 7
-
$883 SGD
View
B
Retailer 8
-
$895 SGD
View
B
Retailer 9
-
$1,061 SGD
View
C
Retailer 10
-
$1,652 SGD
View
Most Expensive
NZ Jewellers
16861eeb-55f2-43ac-b2ba-983adf7bd2fb · Sep 30
$2,243 SGD
$1,750 USD
View
Price last confirmed 37 days ago
10 more retailers have this diamond
Prices start from $660 SGDSave up to $992 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
$660 SGD