CaratHunter
Plans
Round|Lab Grown|IGI

2.09ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG618458038

Shape and cutting style on the report: Round brilliant

Certificate IGI LG618458038

Diamond specifications and retailer prices

From £227 GBP
As of November 1, 2026
Save £1,303 GBP (85%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,531 GBP at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 2.09ct lab-grown round diamond

This 2.09ct lab-grown round sits in the two to three carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG618458038 or 618458038. Listed at 16 retailers as of November 1, 2026, with prices from £227 to £1,531, a £1,303 spread on the same certified stone. Brilliant Earth lists it at £1,531. 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

2.09
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618458038
Dimensions8.29 × 8.24 × 5.03 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.29 mm8.24 mm2.09 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618458038
Side View
Table 57.0%Crown 34°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.9%

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: £1,531 GBP|Low: £218 GBP|High: £1,560 GBP|Avg: £570 GBP|-1.9%
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
Retailer 14
Retailer 15
Retailer 16
November 3, 2026
Retailer 15£227 GBP
Retailer 16£254 GBP
Retailer 4£264 GBP
Retailer 3£282 GBP
Retailer 5£282 GBP
Retailer 14£409 GBP
Retailer 12£442 GBP
Retailer 6£460 GBP
Retailer 2£467 GBP
Retailer 8£491 GBP
Retailer 10£495 GBP
Retailer 9£724 GBP
Retailer 13£869 GBP
Retailer 7£905 GBP
Retailer 11£1,128 GBP
Brilliant Earth£1,531 GBP

42 data points across 16 retailers

16 retailers£227 GBP to £1,531 GBP

A
Cheapest Retailer
-
£227 GBP
A
Retailer 2
-
£264 GBP
View
A
Retailer 3
-
£282 GBP
View
Retailer 4
-
£282 GBP
View
Price last confirmed 12 days ago
A
Retailer 5
-
£442 GBP
View
B+
Retailer 6
-
£460 GBP
View
A
Retailer 7
-
£467 GBP
View
A
Retailer 8
-
£491 GBP
View
A
Retailer 9
-
£495 GBP
View
A
Retailer 10
-
£495 GBP
View
B+
Retailer 11
-
£724 GBP
View
B+
Retailer 12
-
£869 GBP
View
B
Retailer 13
-
£905 GBP
View
B
Retailer 14
-
£940 GBP
View
B
Retailer 15
-
£1,128 GBP
View
Most Expensive
B
Brilliant Earth
14981723A · Nov 3
£1,531 GBP
$2,060 USD
View
15 more retailers have this diamond
Prices start from £227 GBPSave up to £1,303 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
2.09ct Round
£227 GBP