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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 $435 NZD
$245 USD
As of November 1, 2026
Save $1,978 NZD (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $2,413 NZD 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 $435 to $2,413, a $1,978 spread on the same certified stone. Brilliant Earth lists it at $2,413. 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

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: $2,413 NZD|Low: $417 NZD|High: $2,466 NZD|Avg: $1,087 NZD|-2.2%
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 2, 2026
Retailer 10$435 NZD
Retailer 11$504 NZD
Retailer 3$538 NZD
Retailer 12$538 NZD
Retailer 6$884 NZD
Retailer 13$907 NZD
Retailer 2$911 NZD
Retailer 7$1,019 NZD
Retailer 5$1,020 NZD
Retailer 9$1,419 NZD
Retailer 4$1,730 NZD
Retailer 8$2,156 NZD
Brilliant Earth$2,413 NZD

45 data points across 13 retailers

16 retailers$435 NZD to $2,413 NZD

A
Cheapest Retailer
-
$435 NZD
$245 USD
A
Retailer 2
-
$504 NZD
$284 USD
View
A
Retailer 3
-
$538 NZD
$303 USD
View
Retailer 4
-
$538 NZD
$303 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$884 NZD
£392 GBP
View
B+
Retailer 6
-
$907 NZD
$511 USD
View
A
Retailer 7
-
$911 NZD
€489 EUR
View
A
Retailer 8
-
$1,015 NZD
$572 USD
View
A
Retailer 9
-
$1,019 NZD
£452 GBP
View
A
Retailer 10
-
$1,020 NZD
$575 USD
View
B+
Retailer 11
-
$1,419 NZD
$800 USD
View
Retailer 12
-
$1,579 NZD
$890 USD
View
Price last confirmed 47 days ago
B+
Retailer 13
-
$1,730 NZD
$975 USD
View
B+
Retailer 14
-
$1,822 NZD
$1,027 USD
View
B
Retailer 15
-
$2,156 NZD
£957 GBP
View
Most Expensive
B
Brilliant Earth
14981592A · Oct 31
$2,413 NZD
$1,360 USD
View
15 more retailers have this diamond
Prices start from $435 NZDSave up to $1,978 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
$435 NZD