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1.35ct K SI1 Round Natural Diamond

EX • K/SI1 • IGI 727584992

Shape and cutting style on the report: Round brilliant

Certificate IGI 727584992

Diamond specifications and retailer prices

From $2,109 SGD
As of November 5, 2026
Save $3,537 SGD (63%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,646 SGD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.35ct natural round diamond

This 1.35ct 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 727584992. Listed at 16 retailers as of November 5, 2026, with prices from $2,109 to $5,646, a $3,537 spread on the same certified stone. NZ Jewellers lists it at $5,646. 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

1.35
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.2°
Pavilion angle40.3°
OriginNatural
Grading LabIGI
CertificateIGI 727584992
Dimensions7.03 × 7.06 × 4.40 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANT
Top View
7.03 mm7.06 mm1.35 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 727584992
Side View
Table 55.0%Crown 36.2°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.4%

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 5
Current: $3,138 SGD|Low: $2,109 SGD|High: $4,104 SGD|Avg: $2,638 SGD|+2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 8$2,109 SGD
Retailer 6$2,223 SGD
Retailer 2$2,314 SGD
Retailer 10$2,339 SGD
Retailer 7$2,389 SGD
Retailer 9$2,422 SGD
Retailer 4$2,599 SGD
Retailer 3$2,825 SGD
Retailer 1$3,138 SGD
Retailer 5$4,044 SGD

40 data points across 10 retailers

16 retailers$2,109 SGD to $5,646 SGD

A
Cheapest Retailer
-
$2,109 SGD
A
Retailer 2
-
$2,223 SGD
View
Retailer 3
-
$2,314 SGD
View
Price last confirmed 50 days ago
A
Retailer 4
-
$2,314 SGD
View
A
Retailer 5
-
$2,339 SGD
View
A
Retailer 6
-
$2,389 SGD
View
A
Retailer 7
-
$2,422 SGD
View
A
Retailer 8
-
$2,489 SGD
View
A
Retailer 9
-
$2,599 SGD
View
B+
Retailer 10
-
$2,671 SGD
View
Retailer 11
-
$2,671 SGD
View
Price last confirmed 48 days ago
A
Retailer 12
-
$2,825 SGD
View
A
Retailer 13
-
$3,138 SGD
View
B+
Retailer 14
-
$4,044 SGD
View
Retailer 15
-
$5,646 SGD
View
Price last confirmed 48 days ago
Most Expensive
B
NZ Jewellers
a4f82243-3331-48f7-94d8-37ea2e89a938 · Nov 5
$5,646 SGD
$4,420 USD
View
15 more retailers have this diamond
Prices start from $2,109 SGDSave up to $3,537 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
1.35ct Round
$2,109 SGD