Radiant|Lab Grown|IGI

4.05ct D SI1 Radiant Lab Grown Diamond

EX • D/SI1 • IGI LG702591710

Certificate IGI LG702591710

Diamond specifications and retailer prices

This diamond has been sold
Last seen: Aug 16, 2026 at $645 USD
$645 USDlast known price

About this 4.05ct lab-grown radiant diamond

This 4.05ct lab-grown radiant 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 LG702591710 or 702591710. 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
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.5°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG702591710
Dimensions11.41 × 7.86 × 5.26 mm
L/W Ratio1.45
Culet sizePointed
Top View
11.41 mm7.86 mm4.05 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG702591710
Side View
Table 66.0%Crown 40.5°Girdle: MediumPavilion 34.8°Culet: NoneDepth 66.9%

Caratlytics Score

Price History

Last verified: Aug 16
Current: $879 USD|Low: $332 USD|High: $2,045 USD|Avg: $1,124 USD|-29.4%
77 Diamonds
Adiamor
B2C Jewels
Friendly Diamonds
Loose Grown Diamond
Nova Diamonds
RockHer
William & Sons Jewelers

87 data points across 8 retailers

Historical Listings

Best Price
William & Sons Jewelers
cert_LG702591710 · Jul 28
$332 USD
View
RockHer
igi-29e0b2de · Aug 16
$645 USD
View
Loose Grown Diamond
702591710 · Aug 7
$706 USD
View
Nova Diamonds
EAE4775B8 · May 18
$735 USD
£579 GBP
View
77 Diamonds
253124813 · Jun 17
$879 USD
£666 GBP
View
B2C Jewels
28631650 · Jun 12
$1,048 USD
View
Friendly Diamonds
2584656 · Aug 7
$1,310 USD
View
Adiamor
D-79331010 · Aug 9
$2,043 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 Radiant Lab-Grown Diamond (Sold), IGI LG702591710