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Round|Lab Grown|IGI

8.07ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG761521125

Shape and cutting style on the report: Round brilliant

Certificate IGI LG761521125

Diamond specifications and retailer prices

From £842 GBP
$1,128 USD
As of November 1, 2026
Save £3,405 GBP (80%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,455 GBP at Rare Carat · As of July 20, 2026
View at Rare Carat

About this 8.07ct lab-grown round diamond

This 8.07ct lab-grown round sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG761521125 or 761521125. Listed at 18 retailers as of October 31, 2026, with a 404% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

8.07
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG761521125
Dimensions12.83 × 12.90 × 7.95 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
12.83 mm12.90 mm8.07 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG761521125
Side View
Table 56.0%Crown 33.4°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.7%

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: £1,411 GBP|Low: £842 GBP|High: £4,381 GBP|Avg: £2,027 GBP|-10.5%
Retailer 1
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
November 2, 2026
Retailer 6£842 GBP
Retailer 16£916 GBP
Retailer 11£977 GBP
Retailer 14£1,026 GBP
Retailer 9£1,239 GBP
Retailer 3£1,373 GBP
Retailer 1£1,411 GBP
Retailer 12£1,516 GBP
Retailer 10£1,554 GBP
Retailer 13£1,831 GBP
Retailer 2£1,844 GBP
Retailer 15£2,577 GBP
Retailer 4£2,958 GBP
Retailer 7£3,306 GBP
Retailer 5£3,418 GBP
Retailer 8£4,247 GBP

35 data points across 16 retailers

18 retailers£842 GBP to £4,247 GBP

A
Cheapest Retailer
-
£842 GBP
$1,128 USD
A
Retailer 2
-
£916 GBP
$1,228 USD
View
A
Retailer 3
-
£977 GBP
$1,309 USD
View
Retailer 4
-
£1,023 GBP
$1,371 USD
View
Price last confirmed 20 days ago
A
Retailer 5
-
£1,026 GBP
$1,375 USD
View
B+
Retailer 6
-
£1,239 GBP
$1,660 USD
View
Final sale: no returns
B+
Retailer 7
-
£1,373 GBP
$1,839 USD
View
B+
Retailer 8
-
£1,411 GBP
View
B+
Retailer 9
-
£1,516 GBP
€1,934 EUR
View
B+
Retailer 10
-
£1,554 GBP
$2,082 USD
View
B+
Retailer 11
-
£1,831 GBP
$2,453 USD
View
B+
Retailer 12
-
£1,844 GBP
$2,471 USD
View
B
Retailer 13
-
£2,577 GBP
$3,453 USD
View
B
Retailer 14
-
£2,958 GBP
$3,963 USD
View
B
Retailer 15
-
£3,306 GBP
View
B
Retailer 16
-
£3,418 GBP
$4,579 USD
View
B
Retailer 17
-
£4,247 GBP
$5,690 USD
View
Most Expensive
Rare Carat
LAE122A-4 · Jul 20
£4,455 GBP
$5,969 USD
View
Price last confirmed 105 days ago
17 more retailers have this diamond
Prices start from £842 GBPSave up to £3,405 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
8.07ct Round
£842 GBP