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1.30ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG492113584

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492113584

Diamond specifications and retailer prices

From $1,315 NZD
$740 USD
As of November 2, 2026
Save $4,790 NZD (78%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,106 NZD at MOH London · As of November 1, 2026
View at MOH London

About this 1.3ct lab-grown round diamond

This 1.3ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492113584 or 492113584. Listed at 11 retailers as of November 1, 2026, with prices from $1,315 to $6,106, a $4,790 spread on the same certified stone. MOH London lists it at $6,106. 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
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492113584
Dimensions6.97 × 7.03 × 4.34 mm
L/W Ratio1.01
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
6.97 mm7.03 mm1.30 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492113584
Side View
Table 54.5%Crown 35.4°Girdle: THN-MEDPavilion 40.3°Culet: NoneDepth 61.9%

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 2
Current: $6,106 NZD|Low: $1,072 NZD|High: $6,189 NZD|Avg: $2,398 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 2$1,315 NZD
Retailer 5$1,340 NZD
Retailer 8$1,502 NZD
Retailer 6$1,555 NZD
Retailer 9$1,555 NZD
Retailer 4$1,866 NZD
Retailer 10$2,442 NZD
Retailer 7$2,515 NZD
Retailer 3$3,699 NZD
MOH London$6,106 NZD

20 data points across 10 retailers

11 retailers$1,315 NZD to $6,106 NZD

A
Cheapest Retailer
-
$1,315 NZD
$740 USD
A
Retailer 2
-
$1,340 NZD
$754 USD
View
A
Retailer 3
-
$1,459 NZD
$821 USD
View
B+
Retailer 4
-
$1,502 NZD
$845 USD
View
Final sale: no returns
B+
Retailer 5
-
$1,555 NZD
$875 USD
View
Retailer 6
-
$1,555 NZD
$875 USD
View
Price last confirmed 21 days ago
B+
Retailer 7
-
$1,866 NZD
$1,050 USD
View
B
Retailer 8
-
$2,515 NZD
$1,415 USD
View
B
Retailer 9
-
$3,699 NZD
$2,081 USD
View
B
Retailer 10
-
$4,372 NZD
$2,460 USD
View
Most Expensive
B
MOH London
LG492113584 · Nov 1
$6,106 NZD
£2,705 GBP
View
10 more retailers have this diamond
Prices start from $1,315 NZDSave up to $4,790 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
1.30ct Round
$1,315 NZD