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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 $2,937 NZD
As of November 5, 2026
Save $4,926 NZD (63%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $7,863 NZD 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 $2,937 to $7,863, a $4,926 spread on the same certified stone. NZ Jewellers lists it at $7,863. 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

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: $4,371 NZD|Low: $2,937 NZD|High: $5,716 NZD|Avg: $3,673 NZD|+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$2,937 NZD
Retailer 6$3,095 NZD
Retailer 2$3,223 NZD
Retailer 10$3,257 NZD
Retailer 7$3,327 NZD
Retailer 9$3,373 NZD
Retailer 4$3,620 NZD
Retailer 3$3,935 NZD
Retailer 1$4,371 NZD
Retailer 5$5,632 NZD

40 data points across 10 retailers

16 retailers$2,937 NZD to $7,863 NZD

A
Cheapest Retailer
-
$2,937 NZD
A
Retailer 2
-
$3,095 NZD
View
Retailer 3
-
$3,223 NZD
View
Price last confirmed 50 days ago
A
Retailer 4
-
$3,223 NZD
View
A
Retailer 5
-
$3,257 NZD
View
A
Retailer 6
-
$3,327 NZD
View
A
Retailer 7
-
$3,373 NZD
View
A
Retailer 8
-
$3,467 NZD
View
A
Retailer 9
-
$3,620 NZD
View
B+
Retailer 10
-
$3,720 NZD
View
Retailer 11
-
$3,720 NZD
View
Price last confirmed 48 days ago
A
Retailer 12
-
$3,935 NZD
View
A
Retailer 13
-
$4,371 NZD
View
B+
Retailer 14
-
$5,632 NZD
View
Retailer 15
-
$7,863 NZD
View
Price last confirmed 48 days ago
Most Expensive
B
NZ Jewellers
a4f82243-3331-48f7-94d8-37ea2e89a938 · Nov 5
$7,863 NZD
$4,420 USD
View
15 more retailers have this diamond
Prices start from $2,937 NZDSave up to $4,926 NZD

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
$2,937 NZD