Princess|Lab Grown|IGI

1.04ct D SI1 Princess Lab Grown Diamond

EX • D/SI1 • IGI LG846602812

Shape and cutting style on the report: Princess cut

Certificate IGI LG846602812

Diamond specifications and retailer prices

From £129 GBP
$173 USD
As of October 31, 2026
Save £363 GBP (74%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £493 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.04ct lab-grown princess diamond

This 1.04ct 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 LG846602812 or 846602812. Listed at 3 retailers as of October 29, 2026, with prices from £129 to £493, a £363 spread on the same certified stone. Brilliant Earth lists it at £493. 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

1.04
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43°
Pavilion angle37.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846602812
Dimensions5.58 × 5.53 × 3.94 mm
L/W Ratio1.01
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.58 mm5.53 mm1.04 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846602812
Side View
Table 67.0%Crown 43°Girdle: MediumPavilion 37.7°Culet: NoneDepth 71.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: £493 GBP|Low: £128 GBP|High: £493 GBP|Avg: £319 GBP
Brilliant Earth
Retailer 2
Retailer 3
October 31, 2026
Retailer 2£129 GBP
Retailer 3£257 GBP
Brilliant Earth£493 GBP

15 data points across 3 retailers

3 retailers£129 GBP to £493 GBP

A
Cheapest Retailer
-
£129 GBP
$173 USD
Final sale: no returns
B+
Retailer 2
-
£257 GBP
View
Most Expensive
B
Brilliant Earth
22151065A · Oct 29
£493 GBP
$660 USD
View
2 more retailers have this diamond
Prices start from £129 GBPSave up to £363 GBP

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
1.04ct Princess
£129 GBP