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1.30ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 803680527

Shape and cutting style on the report: Round brilliant

Certificate IGI 803680527

Diamond specifications and retailer prices

From $2,101 SGD
As of November 1, 2026
Save $3,734 SGD (64%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,835 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.3ct natural round diamond

This 1.3ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 803680527. Listed at 16 retailers as of November 1, 2026, with prices from $2,101 to $5,835, a $3,734 spread on the same certified stone. NZ Jewellers lists it at $5,835. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.30
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41.4°
OriginNatural
Grading LabIGI
CertificateIGI 803680527
Dimensions6.88 × 6.94 × 4.34 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.88 mm6.94 mm1.30 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803680527
Side View
Table 58.0%Crown 34.1°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.9%

Caratlytics Score

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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 1
Current: $5,835 SGD|Low: $2,101 SGD|High: $5,835 SGD|Avg: $2,873 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
Retailer 14
Retailer 15
Retailer 16
November 6, 2026
Retailer 6$2,101 SGD
Retailer 7$2,179 SGD
Retailer 2$2,289 SGD
Retailer 8$2,331 SGD
Retailer 14$2,392 SGD
Retailer 16$2,392 SGD
Retailer 4$2,459 SGD
Retailer 15$2,502 SGD
Retailer 5$2,567 SGD
Retailer 9$2,611 SGD
Retailer 3$2,760 SGD
Retailer 10$2,773 SGD
Retailer 11$2,919 SGD
Retailer 12$3,246 SGD
Retailer 13$4,179 SGD
NZ Jewellers$5,835 SGD

21 data points across 16 retailers

16 retailers$2,101 SGD to $5,835 SGD

A
Cheapest Retailer
-
$2,101 SGD
A
Retailer 2
-
$2,179 SGD
View
A
Retailer 3
-
$2,289 SGD
View
A
Retailer 4
-
$2,331 SGD
View
Retailer 5
-
$2,392 SGD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$2,392 SGD
View
A
Retailer 7
-
$2,459 SGD
View
A
Retailer 8
-
$2,502 SGD
View
A
Retailer 9
-
$2,567 SGD
View
A
Retailer 10
-
$2,611 SGD
View
A
Retailer 11
-
$2,760 SGD
View
A
Retailer 12
-
$2,773 SGD
View
A
Retailer 13
-
$2,919 SGD
View
B+
Retailer 14
-
$3,246 SGD
View
B+
Retailer 15
-
$4,179 SGD
View
Most Expensive
B
NZ Jewellers
3006bd38-023d-4a74-ae31-328dbbbb3290 · Nov 5
$5,835 SGD
$4,568 USD
View
15 more retailers have this diamond
Prices start from $2,101 SGDSave up to $3,734 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
1.30ct Round
$2,101 SGD