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Radiant|Lab Grown|IGI

1.50ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG544263063

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

Certificate IGI LG544263063

Diamond specifications and retailer prices

From $288 NZD
$162 USD
As of October 30, 2026
Save $1,396 NZD (83%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,685 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG544263063 or 544263063. Listed at 18 retailers as of October 29, 2026, with prices from $288 to $1,685, a $1,396 spread on the same certified stone. MOH London lists it at $1,685. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.8°
Pavilion angle30.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG544263063
Dimensions7.89 × 5.64 × 3.76 mm
L/W Ratio1.40
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.89 mm5.64 mm1.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG544263063
Side View
Table 67.0%Crown 47.8°Girdle: Slightly ThickPavilion 30.3°Culet: NoneDepth 66.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $1,685 NZD|Low: $278 NZD|High: $1,696 NZD|Avg: $733 NZD|+0.4%
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
Retailer 14
October 30, 2026
Retailer 11$288 NZD
Retailer 3$335 NZD
Retailer 4$358 NZD
Retailer 12$358 NZD
Retailer 2$460 NZD
Retailer 13$490 NZD
Retailer 7$633 NZD
Retailer 8$647 NZD
Retailer 9$649 NZD
Retailer 5$824 NZD
Retailer 14$1,152 NZD
Retailer 6$1,157 NZD
Retailer 10$1,216 NZD
MOH London$1,685 NZD

44 data points across 14 retailers

18 retailers$288 NZD to $1,685 NZD

A
Cheapest Retailer
-
$288 NZD
$162 USD
A
Retailer 2
-
$335 NZD
$188 USD
View
A
Retailer 3
-
$358 NZD
$201 USD
View
A
Retailer 4
-
$358 NZD
$201 USD
View
A
Retailer 5
-
$410 NZD
HK$1,800 HKD
View
A
Retailer 6
-
$460 NZD
£203 GBP
View
B+
Retailer 7
-
$490 NZD
$275 USD
View
A
Retailer 8
-
$633 NZD
£280 GBP
View
A
Retailer 9
-
$647 NZD
£286 GBP
View
A
Retailer 10
-
$649 NZD
€347 EUR
View
A
Retailer 11
-
$776 NZD
$436 USD
View
B+
Retailer 12
-
$824 NZD
$463 USD
View
B+
Retailer 13
-
$1,152 NZD
$647 USD
View
B+
Retailer 14
-
$1,157 NZD
A$1,000 AUD
View
B+
Retailer 15
-
$1,181 NZD
SGD 896 SGD
View
B
Retailer 16
-
$1,216 NZD
$683 USD
View
Most Expensive
B
MOH London
LG544263063 · Oct 29
$1,685 NZD
£745 GBP
View
16 more retailers have this diamond
Prices start from $288 NZDSave up to $1,396 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
$288 NZD