Round|Lab Grown|IGI

3.05ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG815653250

Shape and cutting style on the report: Round brilliant

Certificate IGI LG815653250

Diamond specifications and retailer prices

From $364 USD
As of November 5, 2026
Save $2,236 USD (86%) vs most expensive(unlock to see where)
20 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 LG815653250 or 815653250. Listed at 20 retailers as of November 5, 2026, with prices from $364 to $2,600, a $2,236 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815653250
Dimensions9.43 × 9.37 × 5.69 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.43 mm9.37 mm3.05 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815653250
Side View
Table 61.0%Crown 32.8°Girdle: THN-MEDPavilion 41.6°Culet: NoneDepth 60.5%

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: $350 USD|High: $2,600 USD|Avg: $1,017 USD
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
Retailer 16
November 5, 2026
Retailer 15$364 USD
Retailer 8$422 USD
Retailer 4$451 USD
Retailer 16$451 USD
Retailer 10$600 USD
Retailer 14$608 USD
Retailer 11$710 USD
Retailer 7$767 USD
Retailer 9$804 USD
Retailer 12$1,060 USD
Retailer 6$1,091 USD
Retailer 3$1,451 USD
Retailer 5$1,465 USD
Retailer 2$1,758 USD
Retailer 13$2,020 USD
Brilliant Earth$2,600 USD

43 data points across 16 retailers

20 retailers$364 USD to $2,600 USD

A
Cheapest Retailer
-
$364 USD
A
Retailer 2
-
$407 USD
View
Final sale: no returns
A
Retailer 3
-
$422 USD
View
Retailer 4
-
$451 USD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$451 USD
View
A
Retailer 6
-
$512 USD
View
A
Retailer 7
-
$600 USD
View
B+
Retailer 8
-
$608 USD
View
A
Retailer 9
-
$710 USD
View
A
Retailer 10
-
$767 USD
View
A
Retailer 11
-
$804 USD
View
B+
Retailer 12
-
$1,060 USD
View
B+
Retailer 13
-
$1,091 USD
View
B+
Retailer 14
-
$1,451 USD
View
B+
Retailer 15
-
$1,465 USD
View
B+
Retailer 16
-
$1,491 USD
View
B
Retailer 17
-
$1,717 USD
View
B
Retailer 18
-
$1,758 USD
View
Retailer 19
-
$2,020 USD
View
Price last confirmed 19 days ago
Most Expensive
B
Brilliant Earth
20763709A · Nov 5
$2,600 USD
View
19 more retailers have this diamond
Prices start from $364 USDSave up to $2,236 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
$364 USD