CaratHunter
Plans
Radiant|Lab Grown|IGI

1.50ct E SI1 Radiant Lab Grown Diamond

GD • E/SI1 • IGI LG636454097

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

Certificate IGI LG636454097

Diamond specifications and retailer prices

From $1,425 NZD
£630 GBP
As of October 29, 2026
2 retailers carry this diamond
Most expensive: $1,584 NZD at Rare Carat · As of September 9, 2026
View at Rare Carat

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 standard cut grade and certified by IGI LG636454097 or 636454097. Listed at 2 retailers as of October 29, 2026. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.50
Carat
E
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.3°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG636454097
Dimensions8.14 × 5.60 × 3.77 mm
L/W Ratio1.45
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.14 mm5.60 mm1.50 ctE / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG636454097
Side View
Table 62.0%Crown 43.3°Girdle: MED-STKPavilion 33.8°Culet: NoneDepth 67.3%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,584 NZD|Low: $580 NZD|High: $1,763 NZD|Avg: $1,056 NZD|-10.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
September 9, 2026
Retailer 4$636 NZD
Retailer 2$653 NZD
Retailer 5$783 NZD
Retailer 3$826 NZD
Retailer 6$1,149 NZD
Rare Carat$1,584 NZD

73 data points across 6 retailers

2 retailers

B
Cheapest Retailer
-
$1,425 NZD
£630 GBP
Most Expensive
Rare Carat
1643643-1-1_l_636454097 · Sep 9
$1,584 NZD
$890 USD
View
Price last confirmed 51 days ago
1 more retailer has this diamond
Prices start from $1,425 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.

B
1.50ct Radiant
$1,425 NZD