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Oval|Natural|IGI

0.51ct K SI1 Oval Natural Diamond

VG • K/SI1 • IGI 815656298

Shape and cutting style on the report: Oval brilliant

Certificate IGI 815656298

Diamond specifications and retailer prices

From $488 SGD
As of November 5, 2026
Save $1,571 SGD (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,060 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 815656298. Listed at 15 retailers as of November 5, 2026, with prices from $488 to $2,060, a $1,571 spread on the same certified stone. NZ Jewellers lists it at $2,060. 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
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle39.5°
Pavilion angle35.6°
OriginNatural
Grading LabIGI
CertificateIGI 815656298
Dimensions6.30 × 4.40 × 2.75 mm
L/W Ratio1.43
Girdle conditionFaceted
Top View
6.30 mm4.40 mm0.51 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 815656298
Side View
Table 58.0%Crown 39.5°Girdle: MED-THKPavilion 35.6°Culet: NoneDepth 62.5%

Caratlytics Score

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

Price History

Last verified: Nov 5
Current: $2,060 SGD|Low: $488 SGD|High: $2,104 SGD|Avg: $807 SGD|-2.1%
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
November 6, 2026
Retailer 11$488 SGD
Retailer 7$500 SGD
Retailer 12$537 SGD
Retailer 13$579 SGD
Retailer 6$584 SGD
Retailer 10$620 SGD
Retailer 9$623 SGD
Retailer 3$628 SGD
Retailer 2$655 SGD
Retailer 5$742 SGD
Retailer 14$828 SGD
Retailer 15$834 SGD
Retailer 8$866 SGD
Retailer 4$1,243 SGD
NZ Jewellers$2,060 SGD

18 data points across 15 retailers

15 retailers$488 SGD to $2,060 SGD

A
Cheapest Retailer
-
$488 SGD
Retailer 2
-
$500 SGD
View
Price last confirmed 9 days ago
A
Retailer 3
-
$537 SGD
View
A
Retailer 4
-
$579 SGD
View
Retailer 5
-
$584 SGD
View
Price last confirmed 8 days ago
B+
Retailer 6
-
$620 SGD
View
B+
Retailer 7
-
$623 SGD
View
B+
Retailer 8
-
$628 SGD
View
B+
Retailer 9
-
$655 SGD
View
B+
Retailer 10
-
$742 SGD
View
B
Retailer 11
-
$828 SGD
View
B
Retailer 12
-
$834 SGD
View
B
Retailer 13
-
$866 SGD
View
B
Retailer 14
-
$1,243 SGD
View
Most Expensive
C
NZ Jewellers
d3d89fb4-5f5c-4fd9-8d0d-1a0c11664320 · Nov 5
$2,060 SGD
$1,607 USD
View
14 more retailers have this diamond
Prices start from $488 SGDSave up to $1,571 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
$488 SGD