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1.01ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG455035513

Shape and cutting style on the report: Round brilliant

Certificate IGI LG455035513

Diamond specifications and retailer prices

From $1,029 NZD
$580 USD
As of October 31, 2026
Save $5,551 NZD (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,580 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1.01ct lab-grown round diamond

This 1.01ct lab-grown round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG455035513 or 455035513. Listed at 13 retailers as of October 31, 2026, with prices from $1,029 to $6,580, a $5,551 spread on the same certified stone. MOH London lists it at $6,580. 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

1.01
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG455035513
Dimensions6.39 × 6.42 × 4.01 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
6.39 mm6.42 mm1.01 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG455035513
Side View
Table 57.0%Crown 34.1°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 62.5%

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: Oct 31
Current: $6,580 NZD|Low: $1,029 NZD|High: $6,670 NZD|Avg: $2,821 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 7$1,029 NZD
Retailer 9$1,673 NZD
Retailer 5$1,820 NZD
Retailer 4$1,874 NZD
Retailer 10$1,941 NZD
Retailer 12$1,941 NZD
Retailer 2$2,240 NZD
Retailer 13$2,495 NZD
Retailer 11$3,107 NZD
Retailer 6$3,327 NZD
Retailer 8$4,182 NZD
Retailer 3$5,456 NZD
MOH London$6,580 NZD

44 data points across 13 retailers

13 retailers$1,029 NZD to $6,580 NZD

A
Cheapest Retailer
-
$1,029 NZD
$580 USD
B+
Retailer 2
-
$1,673 NZD
$943 USD
View
B+
Retailer 3
-
$1,820 NZD
$1,026 USD
View
B+
Retailer 4
-
$1,874 NZD
$1,056 USD
View
Final sale: no returns
Retailer 5
-
$1,941 NZD
$1,094 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$1,941 NZD
$1,094 USD
View
B+
Retailer 7
-
$2,240 NZD
£994 GBP
View
B+
Retailer 8
-
$2,253 NZD
$1,270 USD
View
B
Retailer 9
-
$3,107 NZD
$1,751 USD
View
B
Retailer 10
-
$3,327 NZD
€1,786 EUR
View
B
Retailer 11
-
$4,182 NZD
$2,357 USD
View
B
Retailer 12
-
$5,456 NZD
$3,075 USD
View
Most Expensive
B
MOH London
LG455035513 · Nov 1
$6,580 NZD
£2,920 GBP
View
12 more retailers have this diamond
Prices start from $1,029 NZDSave up to $5,551 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
1.01ct Round
$1,029 NZD