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Radiant|Lab Grown|IGI

3.90ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1 • IGI LG762540392

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

Certificate IGI LG762540392

Diamond specifications and retailer prices

From $1,043 NZD
$588 USD
As of October 31, 2026
Save $7,633 NZD (88%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $8,676 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 LG762540392 or 762540392. Listed at 4 retailers as of October 31, 2026, with prices from $1,043 to $8,676, a $7,633 spread on the same certified stone. Brilliant Earth lists it at $8,676. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle46.3°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762540392
Dimensions10.69 × 7.89 × 5.34 mm
L/W Ratio1.35
Culet sizePointed
Top View
10.69 mm7.89 mm3.90 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762540392
Side View
Table 67.0%Crown 46.3°Girdle: Slightly ThickPavilion 35.4°Culet: NoneDepth 67.7%

Caratlytics Score

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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 31
Current: $8,676 NZD|Low: $763 NZD|High: $8,925 NZD|Avg: $3,335 NZD|-2.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 4$1,043 NZD
Retailer 6$1,428 NZD
Retailer 8$1,476 NZD
Retailer 7$1,678 NZD
Retailer 3$1,792 NZD
Retailer 2$1,881 NZD
Retailer 9$3,605 NZD
Retailer 10$3,857 NZD
Retailer 11$4,043 NZD
Retailer 5$7,008 NZD
Brilliant Earth$8,676 NZD

39 data points across 11 retailers

4 retailers$1,043 NZD to $8,676 NZD

A
Cheapest Retailer
-
$1,043 NZD
$588 USD
Final sale: no returns
A
Retailer 2
-
$1,881 NZD
£835 GBP
View
Retailer 3
-
$7,008 NZD
$3,950 USD
View
Price last confirmed 34 days ago
Most Expensive
B
Brilliant Earth
17192827A · Oct 31
$8,676 NZD
$4,890 USD
View
3 more retailers have this diamond
Prices start from $1,043 NZDSave up to $7,633 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
$1,043 NZD