CaratHunter
Plans
Radiant|Lab Grown|IGI

1.51ct H SI1 Radiant Lab Grown Diamond

H/SI1 • IGI LG538288690

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

Certificate IGI LG538288690

Diamond specifications and retailer prices

From $1,615 NZD
£716 GBP
As of November 2, 2026
1 retailer carries this diamond
Only listing: $1,615 NZD at Diamond Quarter
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Diamond Quarter

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included) and certified by IGI LG538288690 or 538288690. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.51
Carat
H
Colour
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.2°
Pavilion angle32.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG538288690
Dimensions8.21 × 5.77 × 3.76 mm
L/W Ratio1.42
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
8.21 mm5.77 mm1.51 ctH / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG538288690
Side View
Table 67.0%Crown 41.2°Girdle: MediumPavilion 32.1°Culet: NoneDepth 65.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $1,386 NZD|Low: $1,386 NZD|High: $1,386 NZD|Avg: $1,386 NZD
December 28, 2025
Retailer 1$1,386 NZD

2 data points across 1 retailer

1 retailer

B+
Diamond Quarter
1.51SI1HLG909885N · Nov 2
$1,615 NZD
£716 GBP
View

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+
1.51ct Radiant
$1,615 NZD