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Round|Lab Grown|IGI

2.05ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG794609681

Shape and cutting style on the report: Round brilliant

Certificate IGI LG794609681

Diamond specifications and retailer prices

From £193 GBP
$259 USD
As of November 1, 2026
Save £964 GBP (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,157 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.05ct lab-grown round diamond

This 2.05ct lab-grown round sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG794609681 or 794609681. Listed at 19 retailers as of October 31, 2026, with prices from £193 to £1,157, a £964 spread on the same certified stone. Brilliant Earth lists it at £1,157. 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

2.05
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794609681
Dimensions8.24 × 8.22 × 4.95 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
8.24 mm8.22 mm2.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794609681
Side View
Table 60.0%Crown 33.2°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.1%

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: Nov 1
Current: £1,157 GBP|Low: £193 GBP|High: £1,202 GBP|Avg: £504 GBP
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
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Retailer 18
November 1, 2026
Retailer 8£193 GBP
Retailer 15£215 GBP
Retailer 4£224 GBP
Retailer 14£240 GBP
Retailer 9£358 GBP
Retailer 12£393 GBP
Retailer 5£399 GBP
Retailer 18£431 GBP
Retailer 10£450 GBP
Retailer 13£456 GBP
Retailer 3£508 GBP
Retailer 17£612 GBP
Retailer 11£765 GBP
Retailer 16£769 GBP
Retailer 7£773 GBP
Retailer 6£808 GBP
Retailer 2£959 GBP
Brilliant Earth£1,157 GBP

29 data points across 18 retailers

19 retailers£193 GBP to £1,157 GBP

A
Cheapest Retailer
-
£193 GBP
$259 USD
A
Retailer 2
-
£215 GBP
$288 USD
View
Final sale: no returns
A
Retailer 3
-
£224 GBP
$300 USD
View
A
Retailer 4
-
£240 GBP
$321 USD
View
Retailer 5
-
£241 GBP
$323 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
£358 GBP
$480 USD
View
A
Retailer 7
-
£393 GBP
View
B+
Retailer 8
-
£399 GBP
$535 USD
View
A
Retailer 9
-
£431 GBP
$577 USD
View
A
Retailer 10
-
£450 GBP
A$928 AUD
View
A
Retailer 11
-
£456 GBP
View
A
Retailer 12
-
£508 GBP
$680 USD
View
B+
Retailer 13
-
£612 GBP
$820 USD
View
B+
Retailer 14
-
£765 GBP
$1,025 USD
View
B+
Retailer 15
-
£769 GBP
$1,031 USD
View
B+
Retailer 16
-
£773 GBP
SGD 1,399 SGD
View
B
Retailer 17
-
£808 GBP
$1,082 USD
View
B
Retailer 18
-
£959 GBP
View
Most Expensive
B
Brilliant Earth
21503091A · Oct 31
£1,157 GBP
$1,550 USD
View
18 more retailers have this diamond
Prices start from £193 GBPSave up to £964 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
2.05ct Round
£193 GBP