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12.50ct E VVS2 Round Lab Grown Diamond

EX • E/VVS2 • IGI LG687505151

Shape and cutting style on the report: Round brilliant

Certificate IGI LG687505151

Diamond specifications and retailer prices

From £4,541 GBP
$6,085 USD
As of October 31, 2026
Save £20,938 GBP (82%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £25,480 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 12.5ct lab-grown round diamond

This 12.5ct lab-grown round sits in the over five carat band, graded E colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG687505151 or 687505151. Listed at 18 retailers as of October 31, 2026, with prices from £4,541 to £25,480, a £20,938 spread on the same certified stone. Brilliant Earth lists it at £25,480. 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

12.50
Carat
E
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG687505151
Dimensions14.76 × 14.62 × 9.18 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
14.76 mm14.62 mm12.50 ctE / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG687505151
Side View
Table 57.0%Crown 36.5°Girdle: Slightly ThickPavilion 40.2°Culet: NoneDepth 62.4%

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: Oct 31
Current: £25,480 GBP|Low: £4,418 GBP|High: £26,271 GBP|Avg: £11,414 GBP|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6£4,541 GBP
Retailer 2£5,839 GBP
Retailer 5£6,146 GBP
Retailer 3£7,276 GBP
Retailer 11£7,316 GBP
Retailer 7£7,580 GBP
Retailer 4£9,038 GBP
Retailer 10£12,811 GBP
Retailer 9£15,848 GBP
Retailer 8£24,721 GBP
Brilliant Earth£25,480 GBP

42 data points across 11 retailers

18 retailers£4,541 GBP to £25,480 GBP

Retailer 1
-
£3,787 GBP
$5,074 USD
Price last confirmed 30 days ago
Retailer 2
-
£4,134 GBP
$5,539 USD
View
Price last confirmed 29 days ago
A
Retailer 3
-
£4,541 GBP
$6,085 USD
View
Final sale: no returns
Retailer 4
-
£4,576 GBP
$6,131 USD
View
Price last confirmed 29 days ago
A
Retailer 5
-
£5,474 GBP
HK$57,300 HKD
View
B+
Retailer 6
-
£5,839 GBP
View
Retailer 7
-
£6,109 GBP
$8,186 USD
View
Price last confirmed 52 days ago
B+
Retailer 8
-
£6,146 GBP
$8,235 USD
View
B+
Retailer 9
-
£7,316 GBP
$9,802 USD
View
B+
Retailer 10
-
£7,580 GBP
$10,157 USD
View
B+
Retailer 11
-
£8,369 GBP
$11,214 USD
View
B
Retailer 12
-
£9,038 GBP
€11,533 EUR
View
B
Retailer 13
-
£12,726 GBP
$17,051 USD
View
B
Retailer 14
-
£12,811 GBP
$17,165 USD
View
B
Retailer 15
-
£15,848 GBP
SGD 28,696 SGD
View
B
Retailer 16
-
£16,308 GBP
$21,851 USD
View
B
Retailer 17
-
£25,225 GBP
$33,799 USD
View
Most Expensive
B
Brilliant Earth
13745714A · Oct 31
£25,480 GBP
$34,140 USD
View
17 more retailers have this diamond
Prices start from £4,541 GBPSave up to £20,938 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
12.50ct Round
£4,541 GBP