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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 $335 AUD
$235 USD
As of November 1, 2026
Save $1,125 AUD (77%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,349 AUD 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 November 1, 2026, with a 336% 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
Colour
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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,349 AUD|Low: $335 AUD|High: $2,662 AUD|Avg: $941 AUD|-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
November 2, 2026
Retailer 3$335 AUD
Retailer 10$389 AUD
Retailer 14$416 AUD
Retailer 15$416 AUD
Retailer 13$685 AUD
Retailer 5$702 AUD
Retailer 9$729 AUD
Retailer 2$776 AUD
Retailer 7$810 AUD
Retailer 6$911 AUD
Retailer 4$1,334 AUD
Retailer 12$1,340 AUD
Retailer 8$1,459 AUD
Retailer 11$1,672 AUD
Brilliant Earth$2,349 AUD

38 data points across 15 retailers

15 retailers$335 AUD to $1,459 AUD

A
Cheapest Retailer
-
$335 AUD
$235 USD
A
Retailer 2
-
$389 AUD
$273 USD
View
A
Retailer 3
-
$416 AUD
$292 USD
View
Retailer 4
-
$416 AUD
$292 USD
View
Price last confirmed 8 days ago
Retailer 5
-
$685 AUD
£379 GBP
View
Price last confirmed 16 days ago
B+
Retailer 6
-
$702 AUD
$493 USD
View
A
Retailer 7
-
$729 AUD
€488 EUR
View
A
Retailer 8
-
$776 AUD
£429 GBP
View
A
Retailer 9
-
$810 AUD
$569 USD
View
B+
Retailer 10
-
$911 AUD
$640 USD
View
B+
Retailer 11
-
$1,334 AUD
$937 USD
View
B
Retailer 12
-
$1,340 AUD
$941 USD
View
B+
Retailer 13
-
$1,459 AUD
$1,025 USD
View
Retailer 14
-
$1,672 AUD
£925 GBP
View
Price last confirmed 12 days ago
Most Expensive
Brilliant Earth
8988852A · Oct 16
$2,349 AUD
$1,650 USD
View
Price last confirmed 16 days ago
14 more retailers have this diamond
Prices start from $335 AUDSave up to $1,125 AUD

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
$335 AUD