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Round|Natural|IGI

0.51ct K SI2 Round Natural Diamond

VG • K/SI2 • IGI 660497001

Shape and cutting style on the report: Round brilliant

Certificate IGI 660497001

Diamond specifications and retailer prices

From $323 SGD
As of November 5, 2026
Save $1,139 SGD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,463 SGD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 660497001. Listed at 10 retailers as of November 4, 2026, with prices from $323 to $1,463, a $1,139 spread on the same certified stone. NZ Jewellers lists it at $1,463. 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
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle34°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 660497001
Dimensions5.07 × 5.05 × 3.12 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
5.07 mm5.05 mm0.51 ctK / SI2
OriginNatural
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateIGI 660497001
Side View
Table 58.0%Crown 34°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 61.6%

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 5
Current: $338 SGD|Low: $333 SGD|High: $754 SGD|Avg: $497 SGD|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 4, 2026
Retailer 4$336 SGD
Retailer 1$338 SGD
Retailer 5$436 SGD
Retailer 8$484 SGD
Retailer 7$489 SGD
Retailer 3$557 SGD
Retailer 6$586 SGD
Retailer 2$743 SGD

22 data points across 8 retailers

10 retailers$323 SGD to $1,463 SGD

B+
Cheapest Retailer
-
$323 SGD
B+
Retailer 2
-
$338 SGD
View
Retailer 3
-
$347 SGD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$360 SGD
View
B+
Retailer 5
-
$434 SGD
View
B+
Retailer 6
-
$436 SGD
View
B+
Retailer 7
-
$489 SGD
View
B+
Retailer 8
-
$557 SGD
View
B+
Retailer 9
-
$743 SGD
View
Most Expensive
C
NZ Jewellers
57bb5c08-ad8c-44d9-9924-1c4132c678f2 · Nov 4
$1,463 SGD
$1,145 USD
View
9 more retailers have this diamond
Prices start from $323 SGDSave up to $1,139 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 Round
$323 SGD