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Round|Lab Grown|IGI

12.06ct F VS1 Round Lab Grown Diamond

ID • F/VS1 • IGI LG621415278

Shape and cutting style on the report: Round brilliant

Certificate IGI LG621415278

Diamond specifications and retailer prices

From £2,529 GBP
As of November 1, 2026
Save £17,010 GBP (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £19,539 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 12.06ct lab-grown round diamond

This 12.06ct lab-grown round 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 LG621415278 or 621415278. Listed at 22 retailers as of October 31, 2026, with prices from £2,529 to £19,539, a £17,010 spread on the same certified stone. Brilliant Earth lists it at £19,539. 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

12.06
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG621415278
Dimensions14.53 × 14.65 × 9.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
14.53 mm14.65 mm12.06 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG621415278
Side View
Table 58.0%Crown 35.9°Girdle: MediumPavilion 40.4°Culet: NoneDepth 61.8%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £19,539 GBP|Low: £2,528 GBP|High: £19,539 GBP|Avg: £5,768 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 13£2,529 GBP
Retailer 18£2,715 GBP
Retailer 16£2,954 GBP
Retailer 9£3,041 GBP
Retailer 3£3,150 GBP
Retailer 15£3,265 GBP
Retailer 7£3,912 GBP
Retailer 5£3,935 GBP
Retailer 11£4,097 GBP
Retailer 17£4,874 GBP
Retailer 8£4,882 GBP
Retailer 2£5,073 GBP
Retailer 12£5,896 GBP
Retailer 4£7,290 GBP
Retailer 6£7,547 GBP
Retailer 14£7,876 GBP
Retailer 10£8,742 GBP
Brilliant Earth£19,539 GBP

34 data points across 18 retailers

22 retailers£2,529 GBP to £19,539 GBP

A
Cheapest Retailer
-
£2,529 GBP
A
Retailer 2
-
£2,715 GBP
$3,638 USD
View
A
Retailer 3
-
£2,954 GBP
$3,958 USD
View
A
Retailer 4
-
£3,041 GBP
$4,074 USD
View
Final sale: no returns
A
Retailer 5
-
£3,150 GBP
$4,220 USD
View
Retailer 6
-
£3,150 GBP
$4,220 USD
View
Price last confirmed 20 days ago
A
Retailer 7
-
£3,265 GBP
$4,375 USD
View
A
Retailer 8
-
£3,354 GBP
$4,494 USD
View
A
Retailer 9
-
£3,912 GBP
$5,242 USD
View
A
Retailer 10
-
£3,935 GBP
$5,273 USD
View
A
Retailer 11
-
£4,097 GBP
View
B+
Retailer 12
-
£4,874 GBP
ZAR 105,505 ZAR
View
B+
Retailer 13
-
£4,882 GBP
$6,542 USD
View
B+
Retailer 14
-
£5,073 GBP
€6,474 EUR
View
Retailer 15
-
£5,307 GBP
$7,111 USD
View
Price last confirmed 53 days ago
B+
Retailer 16
-
£5,896 GBP
A$12,153 AUD
View
B
Retailer 17
-
£7,290 GBP
$9,768 USD
View
B
Retailer 18
-
£7,547 GBP
$10,112 USD
View
B+
Retailer 19
-
£7,876 GBP
A$16,236 AUD
View
B
Retailer 20
-
£8,742 GBP
$11,713 USD
View
B
Retailer 21
-
£11,108 GBP
$14,883 USD
View
Most Expensive
B
Brilliant Earth
20602190A · Oct 31
£19,539 GBP
$26,180 USD
View
21 more retailers have this diamond
Prices start from £2,529 GBPSave up to £17,010 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
12.06ct Round
£2,529 GBP