Round|Lab Grown|IGI

4.05ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG645475714

Certificate IGI LG645475714

Diamond specifications and retailer prices

This diamond has been sold
Last seen: Aug 23, 2026 at $1,601 USD
$1,601 USDlast known price

About this 4.05ct lab-grown round diamond

This 4.05ct 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 LG645475714 or 645475714. 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

4.05
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645475714
Dimensions10.26 × 10.18 × 6.32 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
10.26 mm10.18 mm4.05 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645475714
Side View
Table 56.0%Crown 35.1°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.8%

Caratlytics Score

Price History

Last verified: Aug 23
Current: $1,601 USD|Low: $1,601 USD|High: $9,530 USD|Avg: $4,478 USD|-28.3%
Adiamor
Diamond Exchange Canada
Do Amore Diamonds
Loose Grown Diamond

8 data points across 4 retailers

Historical Listings

Best Price
Adiamor
D-72274676 · Aug 23
$1,601 USD
View
Loose Grown Diamond
645475714 · Aug 21
$2,082 USD
View
Diamond Exchange Canada
1963610862 · Aug 20
$3,071 USD
CA$4,266 CAD
View
Do Amore Diamonds
16-500095636 · Aug 22
$8,740 USD
View

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.

4.05ct D SI1 Round Lab-Grown Diamond (Sold), IGI LG645475714