Princess|Lab Grown|IGI

1.29ct G VS1 Princess Lab Grown Diamond

ID • G/VS1 • IGI LG843627150

Shape and cutting style on the report: Princess cut

Certificate IGI LG843627150

Diamond specifications and retailer prices

From $191 USD
As of October 30, 2026
Save $569 USD (75%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $760 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.29ct lab-grown princess diamond

This 1.29ct lab-grown princess sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843627150 or 843627150. Listed at 3 retailers as of October 30, 2026, with prices from $191 to $760, a $569 spread on the same certified stone. Brilliant Earth lists it at $760. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.29
Carat
G
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle38.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843627150
Dimensions5.23 × 5.17 × 3.71 mm
L/W Ratio1.01
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.23 mm5.17 mm1.29 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843627150
Side View
Table 70.0%Crown 40.8°Girdle: MediumPavilion 38.4°Culet: NoneDepth 68.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: $760 USD|Low: $191 USD|High: $770 USD|Avg: $513 USD|-1.3%
Brilliant Earth
Retailer 2
Retailer 3
November 1, 2026
Retailer 3$191 USD
Retailer 2$390 USD
Brilliant Earth$760 USD

23 data points across 3 retailers

3 retailers$191 USD to $760 USD

A
Cheapest Retailer
-
$191 USD
Final sale: no returns
A
Retailer 2
-
$390 USD
£307 GBP
View
Most Expensive
B+
Brilliant Earth
21744702A · Oct 31
$760 USD
View
2 more retailers have this diamond
Prices start from $191 USDSave up to $569 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
1.29ct Princess
$191 USD