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0.30ct K SI1 Round Natural Diamond

VG • K/SI1 • IGI 815638728

Shape and cutting style on the report: Round brilliant

Certificate IGI 815638728

Diamond specifications and retailer prices

From $141 SGD
As of November 4, 2026
Save $788 SGD (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $929 SGD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.3ct natural round diamond

This 0.3ct natural round sits in the sub-half-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 815638728. Listed at 16 retailers as of November 4, 2026, with prices from $141 to $929, a $788 spread on the same certified stone. NZ Jewellers lists it at $929. 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

0.30
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle33.7°
Pavilion angle40.3°
OriginNatural
Grading LabIGI
CertificateIGI 815638728
Dimensions4.25 × 4.28 × 2.62 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
4.25 mm4.28 mm0.30 ctK / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 815638728
Side View
Table 56.0%Crown 33.7°Girdle: STK-THKPavilion 40.3°Culet: NoneDepth 61.4%

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 4
Current: $411 SGD|Low: $141 SGD|High: $478 SGD|Avg: $304 SGD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4$141 SGD
Retailer 6$211 SGD
Retailer 9$229 SGD
Retailer 10$248 SGD
Retailer 2$276 SGD
Retailer 3$300 SGD
Retailer 5$318 SGD
Retailer 8$379 SGD
Retailer 1$411 SGD
Retailer 7$471 SGD

41 data points across 10 retailers

16 retailers$141 SGD to $929 SGD

A
Cheapest Retailer
-
$141 SGD
B+
Retailer 2
-
$204 SGD
View
B+
Retailer 3
-
$211 SGD
View
Retailer 4
-
$221 SGD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$229 SGD
View
B+
Retailer 6
-
$248 SGD
View
B+
Retailer 7
-
$257 SGD
View
B+
Retailer 8
-
$276 SGD
View
B+
Retailer 9
-
$300 SGD
View
B+
Retailer 10
-
$318 SGD
View
B+
Retailer 11
-
$370 SGD
View
B+
Retailer 12
-
$379 SGD
View
B+
Retailer 13
-
$411 SGD
View
B
Retailer 14
-
$471 SGD
View
B
Retailer 15
-
$479 SGD
View
Most Expensive
C
NZ Jewellers
3c22a5fe-8b57-4ff8-b232-2a8df9a8565b · Nov 4
$929 SGD
$727 USD
View
15 more retailers have this diamond
Prices start from $141 SGDSave up to $788 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
0.30ct Round
$141 SGD