Princess|Lab Grown|IGI

3.06ct I SI2 Princess Lab Grown Diamond

VG • I/SI2 • IGI LG12838717

Shape and cutting style on the report: Square modified brilliant

Certificate IGI LG12838717

Diamond specifications and retailer prices

From £1,520 GBP
CA$2,828 CAD
As of October 30, 2026
Save £673 GBP (31%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £2,193 GBP at The Diamond Guys · As of October 30, 2026
View at The Diamond Guys

About this 3.06ct lab-grown princess diamond

This 3.06ct lab-grown princess sits in the three to five carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG12838717 or 12838717. Listed at 2 retailers as of October 30, 2026, with prices from £1,520 to £2,193, a £673 spread on the same certified stone. The Diamond Guys lists it at £2,193. 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

3.06
Carat
I
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishGood
SymmetryGood
FluorescenceNone
Crown angle36.8°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG12838717
Dimensions8.21 × 8.17 × 5.36 mm
L/W Ratio1.00
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment.
Top View
8.21 mm8.17 mm3.06 ctI / SI2
OriginLab Grown
CutVery Good
PolishGood
SymmetryGood
FluorescenceNone
CertificateIGI LG12838717
Side View
Table 78.5%Crown 36.8°Girdle: Slightly ThickPavilion 38.6°Culet: NoneDepth 65.6%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: £563 GBP|Low: £563 GBP|High: £2,932 GBP|Avg: £1,604 GBP|-44.8%
Retailer 1
Retailer 2
Retailer 3
The Diamond Guys
September 8, 2026
Retailer 1£563 GBP
Retailer 2£766 GBP
Retailer 3£1,520 GBP
The Diamond Guys£2,193 GBP

16 data points across 4 retailers

2 retailers£1,520 GBP to £2,193 GBP

B
Cheapest Retailer
-
£1,520 GBP
CA$2,828 CAD
Most Expensive
C
The Diamond Guys
1779253094 · Oct 30
£2,193 GBP
$2,938 USD
View
1 more retailer has this diamond
Prices start from £1,520 GBPSave up to £673 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.

B
3.06ct Princess
£1,520 GBP