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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 $915 AUD
$643 USD
As of October 29, 2026
Save $6,737 AUD (88%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $7,653 AUD 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 $915 to $7,653, a $6,737 spread on the same certified stone. Frank Darling lists it at $7,653. 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
Colour
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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $7,653 AUD|Low: $611 AUD|High: $13,225 AUD|Avg: $3,652 AUD|-5.4%
Frank Darling
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
Retailer 17
October 28, 2026
Retailer 5$614 AUD
Retailer 2$915 AUD
Retailer 4$1,096 AUD
Retailer 10$1,264 AUD
Retailer 3$1,342 AUD
Retailer 13$1,600 AUD
Retailer 7$2,265 AUD
Retailer 6$2,266 AUD
Retailer 14$2,842 AUD
Retailer 17$3,212 AUD
Retailer 12$3,397 AUD
Retailer 15$3,557 AUD
Retailer 9$4,428 AUD
Retailer 11$5,367 AUD
Retailer 16$6,805 AUD
Frank Darling$7,653 AUD
Retailer 8$13,225 AUD

18 data points across 17 retailers

6 retailers$915 AUD to $7,653 AUD

A
Cheapest Retailer
-
$915 AUD
$643 USD
Final sale: no returns
B+
Retailer 2
-
$1,264 AUD
$888 USD
View
Retailer 3
-
$3,397 AUD
$2,386 USD
View
Price last confirmed 25 days ago
Retailer 4
-
$4,428 AUD
View
Price last confirmed 118 days ago
Retailer 5
-
$5,367 AUD
$3,770 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Frank Darling
100758035630KD · Oct 28
$7,653 AUD
$5,375 USD
View
5 more retailers have this diamond
Prices start from $915 AUDSave up to $6,737 AUD

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
$915 AUD