Round|Lab Grown|IGI

2.05ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG617489637

Shape and cutting style on the report: Round brilliant

Certificate IGI LG617489637

Diamond specifications and retailer prices

From $235 USD
As of October 29, 2026
Save $706 USD (75%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,650 USD at Brilliant Earth · As of October 16, 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 LG617489637 or 617489637. Listed at 15 retailers as of October 29, 2026, with a 300% 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

2.05
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617489637
Dimensions8.16 × 8.13 × 5.00 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
8.16 mm8.13 mm2.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617489637
Side View
Table 57.0%Crown 35.2°Girdle: MediumPavilion 40.5°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
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: Oct 29
Current: $1,650 USD|Low: $235 USD|High: $1,870 USD|Avg: $660 USD|-11.8%
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
October 31, 2026
Retailer 15$235 USD
Retailer 9$273 USD
Retailer 13$292 USD
Retailer 14$292 USD
Retailer 12$481 USD
Retailer 4$493 USD
Retailer 2$512 USD
Retailer 8$550 USD
Retailer 7$569 USD
Retailer 6$640 USD
Retailer 3$937 USD
Retailer 11$941 USD
Retailer 5$1,035 USD
Retailer 10$1,175 USD
Brilliant Earth$1,650 USD

37 data points across 15 retailers

15 retailers$235 USD to $941 USD

A
Cheapest Retailer
-
$235 USD
A
Retailer 2
-
$273 USD
View
A
Retailer 3
-
$292 USD
View
A
Retailer 4
-
$292 USD
View
Retailer 5
-
$481 USD
£379 GBP
View
Price last confirmed 15 days ago
B+
Retailer 6
-
$493 USD
View
A
Retailer 7
-
$512 USD
€488 EUR
View
A
Retailer 8
-
$550 USD
£433 GBP
View
A
Retailer 9
-
$569 USD
View
B+
Retailer 10
-
$640 USD
View
B+
Retailer 11
-
$937 USD
View
B
Retailer 12
-
$941 USD
View
Retailer 13
-
$1,035 USD
View
Price last confirmed 24 days ago
Retailer 14
-
$1,175 USD
£925 GBP
View
Price last confirmed 11 days ago
Most Expensive
Brilliant Earth
8988852A · Oct 16
$1,650 USD
View
Price last confirmed 15 days ago
14 more retailers have this diamond
Prices start from $235 USDSave up to $706 USD

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
$235 USD