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1.35ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG440012693

Shape and cutting style on the report: Round brilliant

Certificate IGI LG440012693

Diamond specifications and retailer prices

From $1,137 NZD
As of November 5, 2026
Save $4,407 NZD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $5,544 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 1.35ct lab-grown round diamond

This 1.35ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440012693 or 440012693. Listed at 11 retailers as of November 5, 2026, with prices from $1,137 to $5,544, a $4,407 spread on the same certified stone. MOH London lists it at $5,544. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440012693
Dimensions7.08 × 7.09 × 4.42 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.08 mm7.09 mm1.35 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440012693
Side View
Table 57.0%Crown 36.3°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 62.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $5,544 NZD|Low: $911 NZD|High: $5,625 NZD|Avg: $2,150 NZD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 5, 2026
Retailer 5$1,137 NZD
Retailer 8$1,274 NZD
Retailer 6$1,320 NZD
Retailer 9$1,320 NZD
Retailer 2$1,370 NZD
Retailer 3$1,637 NZD
Retailer 10$2,151 NZD
Retailer 7$2,158 NZD
Retailer 4$3,369 NZD
MOH London$5,544 NZD

22 data points across 10 retailers

11 retailers$1,137 NZD to $5,544 NZD

A
Cheapest Retailer
-
$1,137 NZD
A
Retailer 2
-
$1,238 NZD
View
B+
Retailer 3
-
$1,274 NZD
View
Final sale: no returns
Retailer 4
-
$1,320 NZD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
$1,320 NZD
View
B+
Retailer 6
-
$1,370 NZD
View
B+
Retailer 7
-
$1,637 NZD
View
B
Retailer 8
-
$2,158 NZD
View
B
Retailer 9
-
$3,369 NZD
View
B
Retailer 10
-
$3,709 NZD
View
Most Expensive
B
MOH London
LG440012693 · Nov 5
$5,544 NZD
£2,454 GBP
View
10 more retailers have this diamond
Prices start from $1,137 NZDSave up to $4,407 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
$1,137 NZD