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1.39ct I SI2 Round Lab Grown Diamond

ID • I/SI2 • IGI LG425066377

Shape and cutting style on the report: Round brilliant

Certificate IGI LG425066377

Diamond specifications and retailer prices

From $1,243 NZD
As of November 5, 2026
Save $4,409 NZD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,653 NZD at MOH London · As of November 5, 2026
View at MOH London

About this 1.39ct lab-grown round diamond

This 1.39ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG425066377 or 425066377. Listed at 10 retailers as of November 5, 2026, with prices from $1,243 to $5,653, a $4,409 spread on the same certified stone. MOH London lists it at $5,653. 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

1.39
Carat
I
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425066377
Dimensions7.24 × 7.17 × 4.38 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.24 mm7.17 mm1.39 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG425066377
Side View
Table 55.0%Crown 33°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.0%

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: $5,653 NZD|Low: $1,195 NZD|High: $5,736 NZD|Avg: $2,396 NZD|-0.3%
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 5, 2026
Retailer 7$1,243 NZD
Retailer 10$1,354 NZD
Retailer 12$1,393 NZD
Retailer 2$1,441 NZD
Retailer 8$1,443 NZD
Retailer 13$1,443 NZD
Retailer 4$1,464 NZD
Retailer 3$2,309 NZD
Retailer 9$2,346 NZD
Retailer 5$3,230 NZD
Retailer 6$3,556 NZD
Retailer 11$4,058 NZD
MOH London$5,653 NZD

15 data points across 13 retailers

10 retailers$1,243 NZD to $5,653 NZD

A
Cheapest Retailer
-
$1,243 NZD
A
Retailer 2
-
$1,354 NZD
View
A
Retailer 3
-
$1,393 NZD
View
Final sale: no returns
A
Retailer 4
-
$1,441 NZD
View
A
Retailer 5
-
$1,443 NZD
View
Retailer 6
-
$1,443 NZD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$2,346 NZD
View
B
Retailer 8
-
$3,556 NZD
View
B
Retailer 9
-
$4,058 NZD
View
Most Expensive
B
MOH London
LG425066377 · Nov 5
$5,653 NZD
£2,502 GBP
View
9 more retailers have this diamond
Prices start from $1,243 NZDSave up to $4,409 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
1.39ct Round
$1,243 NZD