Radiant|Lab Grown|IGI

1.56ct G SI1 Radiant Lab Grown Diamond

EX • G/SI1 • IGI LG668414408

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

Certificate IGI LG668414408

Diamond specifications and retailer prices

From $803 CAD
£452 GBP
As of October 31, 2026
1 retailer carries this diamond
Only listing: $803 CAD 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 1.56ct lab-grown radiant diamond

This 1.56ct lab-grown radiant sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG668414408 or 668414408. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.56
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.1°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG668414408
Dimensions8.26 × 5.70 × 3.86 mm
L/W Ratio1.45
Top View
8.26 mm5.70 mm1.56 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG668414408
Side View
Table 64.0%Crown 41.1°Girdle: MediumPavilion 35.2°CuletDepth 67.7%

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: Oct 31
Current: $803 CAD|Low: $803 CAD|High: $803 CAD|Avg: $803 CAD
September 26, 2026
Diamond Quarter$803 CAD

1 data point across 1 retailer

1 retailer

B+
Diamond Quarter
1.56SI1GLG08A187N · Oct 31
$803 CAD
£452 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+
1.56ct Radiant
$803 CAD