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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 $417 NZD
$235 USD
As of November 1, 2026
Save $1,402 NZD (77%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,928 NZD 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $2,928 NZD|Low: $417 NZD|High: $3,318 NZD|Avg: $1,173 NZD|-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$417 NZD
Retailer 10$484 NZD
Retailer 14$518 NZD
Retailer 15$518 NZD
Retailer 13$854 NZD
Retailer 5$875 NZD
Retailer 9$909 NZD
Retailer 2$967 NZD
Retailer 7$1,010 NZD
Retailer 6$1,136 NZD
Retailer 4$1,663 NZD
Retailer 12$1,670 NZD
Retailer 8$1,819 NZD
Retailer 11$2,084 NZD
Brilliant Earth$2,928 NZD

38 data points across 15 retailers

15 retailers$417 NZD to $1,819 NZD

A
Cheapest Retailer
-
$417 NZD
$235 USD
A
Retailer 2
-
$484 NZD
$273 USD
View
A
Retailer 3
-
$518 NZD
$292 USD
View
Retailer 4
-
$518 NZD
$292 USD
View
Price last confirmed 8 days ago
Retailer 5
-
$854 NZD
£379 GBP
View
Price last confirmed 16 days ago
B+
Retailer 6
-
$875 NZD
$493 USD
View
A
Retailer 7
-
$909 NZD
€488 EUR
View
A
Retailer 8
-
$967 NZD
£429 GBP
View
A
Retailer 9
-
$1,010 NZD
$569 USD
View
B+
Retailer 10
-
$1,136 NZD
$640 USD
View
B+
Retailer 11
-
$1,663 NZD
$937 USD
View
B
Retailer 12
-
$1,670 NZD
$941 USD
View
B+
Retailer 13
-
$1,819 NZD
$1,025 USD
View
Retailer 14
-
$2,084 NZD
£925 GBP
View
Price last confirmed 12 days ago
Most Expensive
Brilliant Earth
8988852A · Oct 16
$2,928 NZD
$1,650 USD
View
Price last confirmed 16 days ago
14 more retailers have this diamond
Prices start from $417 NZDSave up to $1,402 NZD

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
$417 NZD