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Round|Lab Grown|IGI

2.05ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG636457387

Shape and cutting style on the report: Round brilliant

Certificate IGI LG636457387

Diamond specifications and retailer prices

From £183 GBP
$245 USD
As of November 1, 2026
Save £832 GBP (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,015 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 LG636457387 or 636457387. Listed at 16 retailers as of October 31, 2026, with prices from £183 to £1,015, a £832 spread on the same certified stone. Brilliant Earth lists it at £1,015. 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 angle33.7°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG636457387
Dimensions8.26 × 8.21 × 4.94 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
8.26 mm8.21 mm2.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG636457387
Side View
Table 58.0%Crown 33.7°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.0%

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: £1,015 GBP|Low: £175 GBP|High: £1,075 GBP|Avg: £476 GBP|-5.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 10£183 GBP
Retailer 11£212 GBP
Retailer 3£226 GBP
Retailer 12£226 GBP
Retailer 6£372 GBP
Retailer 13£381 GBP
Retailer 8£382 GBP
Retailer 7£429 GBP
Retailer 5£429 GBP
Retailer 9£597 GBP
Retailer 4£728 GBP
Retailer 2£907 GBP
Brilliant Earth£1,015 GBP

45 data points across 13 retailers

16 retailers£183 GBP to £1,015 GBP

A
Cheapest Retailer
-
£183 GBP
$245 USD
A
Retailer 2
-
£212 GBP
$284 USD
View
A
Retailer 3
-
£226 GBP
$303 USD
View
Retailer 4
-
£226 GBP
$303 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£372 GBP
View
B+
Retailer 6
-
£381 GBP
$511 USD
View
A
Retailer 7
-
£382 GBP
€488 EUR
View
A
Retailer 8
-
£427 GBP
$572 USD
View
A
Retailer 9
-
£429 GBP
View
A
Retailer 10
-
£429 GBP
$575 USD
View
B+
Retailer 11
-
£597 GBP
$800 USD
View
Retailer 12
-
£664 GBP
$890 USD
View
Price last confirmed 46 days ago
B+
Retailer 13
-
£728 GBP
$975 USD
View
B+
Retailer 14
-
£767 GBP
$1,027 USD
View
B
Retailer 15
-
£907 GBP
View
Most Expensive
B
Brilliant Earth
14981592A · Oct 31
£1,015 GBP
$1,360 USD
View
15 more retailers have this diamond
Prices start from £183 GBPSave up to £832 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
£183 GBP