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Round|Lab Grown|IGI

11.77ct G VS2 Round Lab Grown Diamond

EX • G/VS2 • IGI LG620431194

Shape and cutting style on the report: Round brilliant

Certificate IGI LG620431194

Diamond specifications and retailer prices

From £2,002 GBP
As of October 30, 2026
Save £12,343 GBP (86%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £14,344 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 11.77ct lab-grown round diamond

This 11.77ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG620431194 or 620431194. Listed at 21 retailers as of October 29, 2026, with prices from £2,002 to £14,344, a £12,343 spread on the same certified stone. Brilliant Earth lists it at £14,344. 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

11.77
Carat
G
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620431194
Dimensions14.77 × 14.74 × 8.76 mm
L/W Ratio1.00
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
14.77 mm14.74 mm11.77 ctG / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620431194
Side View
Table 61.0%Crown 33.1°Girdle: MediumPavilion 40.7°Culet: NoneDepth 59.3%

Caratlytics Score

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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: Oct 30
Current: £14,344 GBP|Low: £1,995 GBP|High: £14,710 GBP|Avg: £4,170 GBP|-2.5%
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
October 31, 2026
Retailer 9£2,002 GBP
Retailer 11£2,142 GBP
Retailer 2£2,331 GBP
Retailer 6£2,399 GBP
Retailer 12£2,485 GBP
Retailer 5£2,605 GBP
Retailer 8£2,795 GBP
Retailer 3£3,177 GBP
Retailer 10£3,344 GBP
Retailer 15£3,415 GBP
Retailer 4£3,864 GBP
Retailer 13£3,956 GBP
Retailer 16£5,947 GBP
Retailer 14£6,029 GBP
Retailer 7£6,913 GBP
Brilliant Earth£14,344 GBP

38 data points across 16 retailers

21 retailers£2,002 GBP to £14,344 GBP

A
Cheapest Retailer
-
£2,002 GBP
A
Retailer 2
-
£2,142 GBP
$2,870 USD
View
A
Retailer 3
-
£2,331 GBP
$3,123 USD
View
A
Retailer 4
-
£2,399 GBP
$3,214 USD
View
Final sale: no returns
A
Retailer 5
-
£2,485 GBP
$3,329 USD
View
Retailer 6
-
£2,485 GBP
$3,329 USD
View
Price last confirmed 9 days ago
Retailer 7
-
£2,485 GBP
$3,329 USD
View
Price last confirmed 18 days ago
A
Retailer 8
-
£2,605 GBP
$3,490 USD
View
A
Retailer 9
-
£2,795 GBP
$3,745 USD
View
A
Retailer 10
-
£3,177 GBP
$4,257 USD
View
A
Retailer 11
-
£3,344 GBP
View
A
Retailer 12
-
£3,415 GBP
$4,576 USD
View
Retailer 13
-
£3,864 GBP
$5,177 USD
View
Price last confirmed 10 days ago
A
Retailer 14
-
£3,956 GBP
€5,048 EUR
View
B+
Retailer 15
-
£4,288 GBP
View
Retailer 16
-
£5,017 GBP
$6,722 USD
View
Price last confirmed 38 days ago
B+
Retailer 17
-
£5,947 GBP
$7,968 USD
View
B+
Retailer 18
-
£6,029 GBP
$8,078 USD
View
B
Retailer 19
-
£6,913 GBP
$9,263 USD
View
B
Retailer 20
-
£8,658 GBP
$11,600 USD
View
Most Expensive
B
Brilliant Earth
20602340A · Oct 29
£14,344 GBP
$19,220 USD
View
20 more retailers have this diamond
Prices start from £2,002 GBPSave up to £12,343 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
11.77ct Round
£2,002 GBP