Radiant|Lab Grown|IGI

1.50ct I SI1 Radiant Lab Grown Diamond

ID • I/SI1 • IGI LG514266066

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG514266066

Diamond specifications and retailer prices

From $1,508 NZD
$850 USD
As of October 31, 2026
Save $7,106 NZD (82%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,615 NZD at MOH London · As of October 29, 2026
View at MOH London

About this 1.5ct lab-grown radiant diamond

This 1.5ct lab-grown radiant sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG514266066 or 514266066. Listed at 10 retailers as of October 29, 2026, with prices from $1,508 to $8,615, a $7,106 spread on the same certified stone. MOH London lists it at $8,615. 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

1.50
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle29.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG514266066
Dimensions7.93 × 5.62 × 3.64 mm
L/W Ratio1.41
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
7.93 mm5.62 mm1.50 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG514266066
Side View
Table 69.0%Crown 38.5°Girdle: ThickPavilion 29.3°Culet: NoneDepth 64.8%

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: $8,615 NZD|Low: $1,508 NZD|High: $8,684 NZD|Avg: $4,097 NZD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 30, 2026
Retailer 2$1,508 NZD
Retailer 3$2,299 NZD
Retailer 4$2,667 NZD
Retailer 6$2,972 NZD
Retailer 8$3,676 NZD
Retailer 5$4,221 NZD
Retailer 7$4,972 NZD
MOH London$8,615 NZD

14 data points across 8 retailers

10 retailers$1,508 NZD to $8,615 NZD

A
Cheapest Retailer
-
$1,508 NZD
$850 USD
B+
Retailer 2
-
$2,299 NZD
$1,296 USD
View
B+
Retailer 3
-
$2,502 NZD
$1,410 USD
View
Retailer 4
-
$2,667 NZD
$1,503 USD
View
Price last confirmed 20 days ago
B+
Retailer 5
-
$2,667 NZD
$1,503 USD
View
B+
Retailer 6
-
$2,972 NZD
$1,675 USD
View
B
Retailer 7
-
$4,221 NZD
$2,379 USD
View
B
Retailer 8
-
$4,972 NZD
$2,802 USD
View
B
Retailer 9
-
$4,998 NZD
$2,817 USD
View
Most Expensive
B
MOH London
LG514266066 · Oct 29
$8,615 NZD
£3,823 GBP
View
9 more retailers have this diamond
Prices start from $1,508 NZDSave up to $7,106 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
1.50ct Radiant
$1,508 NZD