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Round|Lab Grown|IGI

3.05ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG629402085

Shape and cutting style on the report: Round brilliant

Certificate IGI LG629402085

Diamond specifications and retailer prices

From $1,235 USD
As of November 5, 2026
Save $400 USD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,635 USD at The Diamond Guys · As of November 6, 2026
View at The Diamond Guys

About this 3.05ct lab-grown round diamond

This 3.05ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG629402085 or 629402085. Listed at 2 retailers as of November 5, 2026, with prices from $1,235 to $1,635, a $400 spread on the same certified stone. The Diamond Guys lists it at $1,635. 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

3.05
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG629402085
Dimensions9.24 × 9.21 × 5.73 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.24 mm9.21 mm3.05 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG629402085
Side View
Table 59.0%Crown 36°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 5
Current: $363 USD|Low: $247 USD|High: $2,780 USD|Avg: $1,221 USD|+41.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
The Diamond Guys
September 19, 2026
Retailer 1$363 USD
Retailer 6$524 USD
Retailer 8$597 USD
Retailer 5$643 USD
Retailer 3$826 USD
Retailer 10$932 USD
Retailer 9$935 USD
Retailer 11$1,045 USD
Retailer 7$1,070 USD
Retailer 2$1,235 USD
The Diamond Guys$1,635 USD
Retailer 12$1,863 USD
Retailer 4$2,610 USD

67 data points across 13 retailers

2 retailers$1,235 USD to $1,635 USD

B+
Cheapest Retailer
-
$1,235 USD
Most Expensive
B
The Diamond Guys
1954434429 · Nov 6
$1,635 USD
View
1 more retailer has this diamond
Prices start from $1,235 USDSave up to $400 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.

B+
3.05ct Round
$1,235 USD