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Princess|Lab Grown|IGI

8.91ct F VS1 Princess Lab Grown Diamond

ID • F/VS1 • IGI LG837669654

Shape and cutting style on the report: Princess cut

Certificate IGI LG837669654

Diamond specifications and retailer prices

From £2,170 GBP
$2,907 USD
As of November 1, 2026
Save £10,436 GBP (83%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £12,606 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 8.91ct lab-grown princess diamond

This 8.91ct lab-grown princess sits in the over five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG837669654 or 837669654. Listed at 8 retailers as of October 31, 2026, with prices from £2,170 to £12,606, a £10,436 spread on the same certified stone. Brilliant Earth lists it at £12,606. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

8.91
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837669654
Dimensions11.20 × 11.15 × 8.15 mm
L/W Ratio1.00
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.20 mm11.15 mm8.91 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837669654
Side View
Table 69.0%Crown 43.6°Girdle: MediumPavilion 39.3°Culet: NoneDepth 73.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: £12,606 GBP|Low: £2,254 GBP|High: £12,606 GBP|Avg: £5,745 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 5£2,254 GBP
Retailer 3£2,411 GBP
Retailer 7£2,780 GBP
Retailer 6£3,211 GBP
Retailer 4£4,568 GBP
Retailer 2£5,406 GBP
Retailer 8£8,043 GBP
Brilliant Earth£12,606 GBP

6 data points across 8 retailers

8 retailers£2,170 GBP to £12,606 GBP

A
Cheapest Retailer
-
£2,170 GBP
$2,907 USD
A
Retailer 2
-
£2,254 GBP
$3,020 USD
View
B+
Retailer 3
-
£2,780 GBP
HK$29,100 HKD
View
B+
Retailer 4
-
£3,211 GBP
$4,303 USD
View
B
Retailer 5
-
£4,568 GBP
$6,120 USD
View
B
Retailer 6
-
£5,406 GBP
A$11,143 AUD
View
B
Retailer 7
-
£8,043 GBP
SGD 14,564 SGD
View
Most Expensive
B
Brilliant Earth
22252751Y · Oct 31
£12,606 GBP
$16,890 USD
View
7 more retailers have this diamond
Prices start from £2,170 GBPSave up to £10,436 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
8.91ct Princess
£2,170 GBP