Princess|Lab Grown|IGI

1.09ct D SI1 Princess Lab Grown Diamond

EX • D/SI1 • IGI LG839620562

Shape and cutting style on the report: Princess cut

Certificate IGI LG839620562

Diamond specifications and retailer prices

From $169 USD
As of October 30, 2026
Save $521 USD (76%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $690 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.09ct lab-grown princess diamond

This 1.09ct lab-grown princess sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG839620562 or 839620562. Listed at 3 retailers as of October 29, 2026, with prices from $169 to $690, a $521 spread on the same certified stone. Brilliant Earth lists it at $690. 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

1.09
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.6°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839620562
Dimensions5.63 × 5.60 × 4.05 mm
L/W Ratio1.01
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.63 mm5.60 mm1.09 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839620562
Side View
Table 67.0%Crown 40.6°Girdle: MediumPavilion 39.7°Culet: NoneDepth 72.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $690 USD|Low: $169 USD|High: $690 USD|Avg: $437 USD
Brilliant Earth
Retailer 2
Retailer 3
October 30, 2026
Retailer 3$169 USD
Retailer 2$338 USD
Brilliant Earth$690 USD

26 data points across 3 retailers

3 retailers$169 USD to $690 USD

A
Cheapest Retailer
-
$169 USD
Final sale: no returns
B+
Retailer 2
-
$338 USD
£266 GBP
View
Most Expensive
B
Brilliant Earth
21602432A · Oct 29
$690 USD
View
2 more retailers have this diamond
Prices start from $169 USDSave up to $521 USD

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
1.09ct Princess
$169 USD