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Radiant|Lab Grown|IGI

0.73ct E SI1 Radiant Lab Grown Diamond

EX • E/SI1 • IGI LG608303660

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

Certificate IGI LG608303660

Diamond specifications and retailer prices

From $620 NZD
$348 USD
As of October 28, 2026
Save $1,128 NZD (65%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,748 NZD at MOH London · As of October 26, 2026
View at MOH London

About this 0.73ct lab-grown radiant diamond

This 0.73ct lab-grown radiant sits in the half to three-quarter carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG608303660 or 608303660. Listed at 3 retailers as of October 26, 2026, with prices from $620 to $1,748, a $1,128 spread on the same certified stone. MOH London lists it at $1,748. 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

0.73
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.8°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG608303660
Dimensions6.42 × 4.46 × 2.97 mm
L/W Ratio1.44
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
6.42 mm4.46 mm0.73 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG608303660
Side View
Table 62.0%Crown 43.8°Girdle: MediumPavilion 34.5°Culet: NoneDepth 66.6%

Caratlytics Score

How it works →
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 28
Current: $1,748 NZD|Low: $439 NZD|High: $1,766 NZD|Avg: $907 NZD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 25, 2026
Retailer 6$439 NZD
Retailer 7$470 NZD
Retailer 5$484 NZD
Retailer 2$620 NZD
Retailer 8$751 NZD
Retailer 9$925 NZD
Retailer 4$1,091 NZD
Retailer 10$1,211 NZD
Retailer 3$1,424 NZD
MOH London$1,748 NZD

10 data points across 10 retailers

3 retailers$620 NZD to $1,748 NZD

A
Cheapest Retailer
-
$620 NZD
$348 USD
B
Retailer 2
-
$1,424 NZD
$800 USD
View
Most Expensive
B
MOH London
LG608303660 · Oct 26
$1,748 NZD
£773 GBP
View
2 more retailers have this diamond
Prices start from $620 NZDSave up to $1,128 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
0.73ct Radiant
$620 NZD