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Round|Lab Grown|IGI

11.51ct G VS2 Round Lab Grown Diamond

ID • G/VS2 • IGI LG687554758

Shape and cutting style on the report: Round brilliant

Certificate IGI LG687554758

Diamond specifications and retailer prices

From £3,497 GBP
$4,686 USD
As of October 30, 2026
Save £2,979 GBP (46%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £6,811 GBP at Taylor and Hart · As of October 18, 2026
View at Taylor and Hart

About this 11.51ct lab-grown round diamond

This 11.51ct 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 LG687554758 or 687554758. Listed at 7 retailers as of October 26, 2026, with a 85% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

11.51
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687554758
Dimensions14.55 × 14.46 × 8.81 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.55 mm14.46 mm11.51 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687554758
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £4,505 GBP|Low: £1,949 GBP|High: £9,291 GBP|Avg: £4,454 GBP|+71.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
October 31, 2026
Retailer 6£1,949 GBP
Retailer 4£3,497 GBP
Retailer 1£4,505 GBP
Retailer 2£4,956 GBP
Retailer 3£6,085 GBP
Retailer 5£6,477 GBP
Taylor and Hart£6,811 GBP

39 data points across 7 retailers

7 retailers£3,497 GBP to £6,477 GBP

Retailer 1
-
£1,949 GBP
$2,612 USD
Price last confirmed 20 days ago
B+
Retailer 2
-
£3,497 GBP
$4,686 USD
View
B+
Retailer 3
-
£4,505 GBP
View
B
Retailer 4
-
£4,956 GBP
$6,640 USD
View
B+
Retailer 5
-
£6,085 GBP
$8,153 USD
View
B
Retailer 6
-
£6,477 GBP
$8,678 USD
View
Most Expensive
Taylor and Hart
UGN6U6Z · Oct 18
£6,811 GBP
$9,125 USD
View
Price last confirmed 12 days ago
6 more retailers have this diamond
Prices start from £3,497 GBPSave up to £2,979 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+
11.51ct Round
£3,497 GBP