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Round|Lab Grown|IGI

3.05ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG788632827

Shape and cutting style on the report: Round brilliant

Certificate IGI LG788632827

Diamond specifications and retailer prices

From $396 USD
As of November 5, 2026
Save $2,204 USD (85%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $2,600 USD at Brilliant Earth · As of November 5, 2026
View at Brilliant Earth

About this 3.05ct lab-grown round diamond

This 3.05ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG788632827 or 788632827. Listed at 11 retailers as of November 5, 2026, with prices from $396 to $2,600, a $2,204 spread on the same certified stone. Brilliant Earth lists it at $2,600. 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
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788632827
Dimensions9.47 × 9.40 × 5.63 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
9.47 mm9.40 mm3.05 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788632827
Side View
Table 59.0%Crown 33.1°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 59.7%

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 5
Current: $2,600 USD|Low: $378 USD|High: $2,680 USD|Avg: $1,341 USD|-3.0%
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
November 5, 2026
Retailer 9$396 USD
Retailer 8$444 USD
Retailer 2$652 USD
Retailer 11$751 USD
Retailer 4$804 USD
Retailer 3$850 USD
Retailer 13$1,314 USD
Retailer 12$1,315 USD
Retailer 7$1,580 USD
Retailer 5$1,596 USD
Retailer 6$1,669 USD
Retailer 10$1,831 USD
Retailer 14$1,895 USD
Brilliant Earth$2,600 USD

29 data points across 14 retailers

11 retailers$396 USD to $2,600 USD

A
Cheapest Retailer
-
$396 USD
A
Retailer 2
-
$444 USD
View
A
Retailer 3
-
$652 USD
View
Retailer 4
-
$751 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$850 USD
View
B+
Retailer 6
-
$1,314 USD
View
B
Retailer 7
-
$1,315 USD
View
B+
Retailer 8
-
$1,580 USD
View
B
Retailer 9
-
$1,831 USD
View
Retailer 10
-
$1,895 USD
View
Price last confirmed 24 days ago
Most Expensive
B
Brilliant Earth
20804994A · Nov 5
$2,600 USD
View
10 more retailers have this diamond
Prices start from $396 USDSave up to $2,204 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
3.05ct Round
$396 USD