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15.11ct G VS1 Round Lab Grown Diamond

ID • G/VS1 • IGI LG771656392

Shape and cutting style on the report: Round brilliant

Certificate IGI LG771656392

Diamond specifications and retailer prices

From £6,282 GBP
$8,417 USD
As of October 26, 2026
Save £15,037 GBP (71%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £21,319 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 15.11ct lab-grown round diamond

This 15.11ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG771656392 or 771656392. Listed at 6 retailers as of October 26, 2026, with prices from £6,282 to £21,319, a £15,037 spread on the same certified stone. Taylor and Hart lists it at £21,319. 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

15.11
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG771656392
Dimensions16.12 × 16.07 × 9.63 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.12 mm16.07 mm15.11 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG771656392
Side View
Table 59.0%Crown 33.7°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 59.8%

Caratlytics Score

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

Price History

Last verified: Oct 26
Current: £7,775 GBP|Low: £6,282 GBP|High: £21,319 GBP|Avg: £10,125 GBP|-7.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Taylor and Hart
November 1, 2026
Retailer 3£6,282 GBP
Retailer 4£6,810 GBP
Retailer 1£7,775 GBP
Retailer 2£11,393 GBP
Retailer 5£11,635 GBP
Taylor and Hart£21,319 GBP

39 data points across 6 retailers

6 retailers£6,282 GBP to £21,319 GBP

B+
Cheapest Retailer
-
£6,282 GBP
$8,417 USD
B+
Retailer 2
-
£6,810 GBP
$9,125 USD
View
B+
Retailer 3
-
£7,775 GBP
View
B
Retailer 4
-
£11,393 GBP
€14,538 EUR
View
B
Retailer 5
-
£11,635 GBP
$15,589 USD
View
Most Expensive
B
Taylor and Hart
0FZMRMH · Oct 31
£21,319 GBP
$28,565 USD
View
5 more retailers have this diamond
Prices start from £6,282 GBPSave up to £15,037 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+
15.11ct Round
£6,282 GBP