Radiant|Lab Grown|IGI

4.05ct I VVS1 Radiant Lab Grown Diamond

ID • I/VVS1 • IGI LG786668224

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG786668224

Diamond specifications and retailer prices

From $1,669 USD
As of October 31, 2026
Save $4,653 USD (74%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $6,322 USD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.05ct lab-grown radiant diamond

This 4.05ct lab-grown radiant sits in the three to five carat band, graded I colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG786668224 or 786668224. Listed at 5 retailers as of October 31, 2026, with prices from $1,669 to $6,322, a $4,653 spread on the same certified stone. Taylor and Hart lists it at $6,322. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.05
Carat
I
Color
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle31.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786668224
Dimensions11.22 × 7.99 × 5.03 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.22 mm7.99 mm4.05 ctI / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786668224
Side View
Table 73.0%Crown 40.1°Girdle: MED-STKPavilion 31.4°Culet: NoneDepth 63.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $5,137 USD|Low: $1,669 USD|High: $7,586 USD|Avg: $3,671 USD|-16.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Taylor and Hart
November 1, 2026
Retailer 4$1,669 USD
Retailer 2$2,046 USD
Retailer 3$2,833 USD
Retailer 1$5,137 USD
Taylor and Hart$6,322 USD

14 data points across 5 retailers

5 retailers$1,669 USD to $6,322 USD

B+
Cheapest Retailer
-
$1,669 USD
B+
Retailer 2
-
$2,046 USD
View
B
Retailer 3
-
$2,833 USD
View
B
Retailer 4
-
$5,137 USD
£4,045 GBP
View
Most Expensive
B
Taylor and Hart
C36LOR0 · Oct 31
$6,322 USD
View
4 more retailers have this diamond
Prices start from $1,669 USDSave up to $4,653 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+
4.05ct Radiant
$1,669 USD