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Radiant|Lab Grown|IGI

3.90ct D VS1 Radiant Lab Grown Diamond

EX • D/VS1 • IGI LG774634791

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

Certificate IGI LG774634791

Diamond specifications and retailer prices

From $1,143 NZD
$643 USD
As of November 1, 2026
Save $8,411 NZD (88%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $9,554 NZD at Frank Darling · As of November 1, 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 LG774634791 or 774634791. Listed at 5 retailers as of November 1, 2026, with prices from $1,143 to $9,554, a $8,411 spread on the same certified stone. Frank Darling lists it at $9,554. 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 angle45.8°
Pavilion angle35.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG774634791
Dimensions11.01 × 7.80 × 5.25 mm
L/W Ratio1.41
Culet sizePointed
Top View
11.01 mm7.80 mm3.90 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG774634791
Side View
Table 67.0%Crown 45.8°Girdle: MediumPavilion 35.6°Culet: NoneDepth 67.3%

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: Nov 1
Current: $9,554 NZD|Low: $1,143 NZD|High: $10,113 NZD|Avg: $4,310 NZD|-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
November 1, 2026
Retailer 8$1,143 NZD
Retailer 12$1,191 NZD
Retailer 9$1,578 NZD
Retailer 4$1,676 NZD
Retailer 11$1,997 NZD
Retailer 6$2,828 NZD
Retailer 5$2,829 NZD
Retailer 15$3,548 NZD
Retailer 3$4,011 NZD
Retailer 2$4,114 NZD
Retailer 13$4,441 NZD
Retailer 10$6,620 NZD
Retailer 14$8,495 NZD
Frank Darling$9,554 NZD
Retailer 7$10,113 NZD

16 data points across 15 retailers

5 retailers$1,143 NZD to $9,554 NZD

A
Cheapest Retailer
-
$1,143 NZD
$643 USD
Final sale: no returns
B+
Retailer 2
-
$1,578 NZD
$888 USD
View
B+
Retailer 3
-
$4,114 NZD
$2,315 USD
View
Retailer 4
-
$6,620 NZD
$3,725 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Frank Darling
100751875740KD · Nov 1
$9,554 NZD
$5,375 USD
View
4 more retailers have this diamond
Prices start from $1,143 NZDSave up to $8,411 NZD

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
$1,143 NZD