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Oval|Natural|IGI

0.51ct H SI1 Oval Natural Diamond

VG • H/SI1 • IGI 815674622

Shape and cutting style on the report: Oval brilliant

Certificate IGI 815674622

Diamond specifications and retailer prices

From $733 SGD
As of November 6, 2026
Save $1,102 SGD (60%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,497 SGD at NZ Jewellers · As of November 5, 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 SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 815674622. Listed at 13 retailers as of November 4, 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
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle31.1°
Pavilion angle38.6°
OriginNatural
Grading LabIGI
CertificateIGI 815674622
Dimensions6.45 × 4.48 × 2.65 mm
L/W Ratio1.44
Girdle conditionFaceted
Culet sizeNone
Top View
6.45 mm4.48 mm0.51 ctH / SI1
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI 815674622
Side View
Table 59.0%Crown 31.1°Girdle: STK-THKPavilion 38.6°Culet: NoneDepth 59.2%

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: $2,497 SGD|Low: $733 SGD|High: $2,497 SGD|Avg: $1,215 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
November 6, 2026
Retailer 12$733 SGD
Retailer 3$796 SGD
Retailer 10$857 SGD
Retailer 11$904 SGD
Retailer 5$919 SGD
Retailer 4$964 SGD
Retailer 2$971 SGD
Retailer 6$998 SGD
Retailer 9$1,068 SGD
Retailer 7$1,228 SGD
Retailer 13$1,708 SGD
Retailer 8$1,835 SGD
NZ Jewellers$2,497 SGD

42 data points across 13 retailers

13 retailers$733 SGD to $1,835 SGD

B+
Cheapest Retailer
-
$733 SGD
Final sale: no returns
B+
Retailer 2
-
$796 SGD
View
B+
Retailer 3
-
$857 SGD
View
B+
Retailer 4
-
$904 SGD
View
B
Retailer 5
-
$919 SGD
View
B
Retailer 6
-
$964 SGD
View
B
Retailer 7
-
$971 SGD
View
B
Retailer 8
-
$998 SGD
View
B
Retailer 9
-
$1,068 SGD
View
B
Retailer 10
-
$1,228 SGD
View
C
Retailer 11
-
$1,708 SGD
View
B
Retailer 12
-
$1,835 SGD
View
Most Expensive
NZ Jewellers
45561710-6261-4c8f-814a-6e41483f6e9d · Nov 5
$2,497 SGD
$1,948 USD
View
Price under review
12 more retailers have this diamond
Prices start from $733 SGDSave up to $1,102 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
$733 SGD