Radiant|Lab Grown|IGI

3.90ct D VS1 Radiant Lab Grown Diamond

EX • D/VS1 • IGI LG769666213

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

Certificate IGI LG769666213

Diamond specifications and retailer prices

From $643 USD
As of October 28, 2026
Save $4,732 USD (88%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $5,375 USD at Frank Darling · As of October 28, 2026
View at Frank Darling

About this 3.9ct lab-grown radiant diamond

This 3.9ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG769666213 or 769666213. Listed at 6 retailers as of October 28, 2026, with prices from $643 to $5,375, a $4,732 spread on the same certified stone. Frank Darling lists it at $5,375. 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

3.90
Carat
D
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.5°
Pavilion angle34.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG769666213
Dimensions7.82 × 7.82 × 11.05 mm
L/W Ratio1.00
Culet sizePointed
Top View
7.82 mm7.82 mm3.90 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG769666213
Side View
Table 67.0%Crown 43.5°Girdle: MediumPavilion 34.4°Culet: NoneDepth 66.0%

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: Oct 28
Current: $5,375 USD|Low: $429 USD|High: $9,290 USD|Avg: $2,565 USD|-5.4%
Frank Darling
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
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Retailer 17
October 28, 2026
Retailer 5$431 USD
Retailer 2$643 USD
Retailer 4$770 USD
Retailer 10$888 USD
Retailer 3$943 USD
Retailer 13$1,124 USD
Retailer 7$1,591 USD
Retailer 6$1,592 USD
Retailer 14$1,996 USD
Retailer 17$2,257 USD
Retailer 12$2,386 USD
Retailer 15$2,499 USD
Retailer 9$3,110 USD
Retailer 11$3,770 USD
Retailer 16$4,780 USD
Frank Darling$5,375 USD
Retailer 8$9,290 USD

18 data points across 17 retailers

6 retailers$643 USD to $5,375 USD

A
Cheapest Retailer
-
$643 USD
Final sale: no returns
B+
Retailer 2
-
$888 USD
View
B+
Retailer 3
-
$2,386 USD
View
Price last confirmed 24 days ago
B
Retailer 4
-
$3,110 USD
A$4,785 AUD
View
Price last confirmed 117 days ago
B
Retailer 5
-
$3,770 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Frank Darling
100758035630KD · Oct 28
$5,375 USD
View
5 more retailers have this diamond
Prices start from $643 USDSave up to $4,732 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
3.90ct Radiant
$643 USD