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Radiant|Lab Grown|IGI

3.91ct D VS1 Radiant Lab Grown Diamond

ID • D/VS1

Diamond specifications and retailer prices

From $1,269 NZD
$715 USD
As of October 30, 2026
Save $5,891 NZD (82%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $7,159 NZD at The Diamond Guys · As of October 31, 2026
View at The Diamond Guys

About this 3.91ct lab-grown radiant diamond

This 3.91ct 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. Listed at 8 retailers as of October 30, 2026, with prices from $1,269 to $7,159, a $5,891 spread on the same certified stone. The Diamond Guys lists it at $7,159. 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

3.91
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions11.00 × 7.89 × 5.26 mm
L/W Ratio1.39
Top View
11.00 mm7.89 mm3.91 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 68.0%CrownGirdle: MediumPavilionCulet: NoneDepth 66.7%

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 30
Current: $2,181 NZD|Low: $1,269 NZD|High: $7,770 NZD|Avg: $3,360 NZD|-7.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
The Diamond Guys
October 30, 2026
Retailer 6$1,269 NZD
Retailer 5$1,380 NZD
Retailer 3$1,764 NZD
Retailer 1$2,181 NZD
Retailer 7$2,775 NZD
Retailer 2$4,060 NZD
Retailer 4$4,567 NZD
The Diamond Guys$7,159 NZD

31 data points across 8 retailers

8 retailers$1,269 NZD to $7,159 NZD

A
Cheapest Retailer
-
$1,269 NZD
$715 USD
A
Retailer 2
-
$1,380 NZD
$778 USD
View
A
Retailer 3
-
$1,764 NZD
$994 USD
View
A
Retailer 4
-
$2,181 NZD
£968 GBP
View
Retailer 5
-
$2,775 NZD
$1,564 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$4,060 NZD
CA$3,178 CAD
View
B+
Retailer 7
-
$4,567 NZD
$2,574 USD
View
Most Expensive
B
The Diamond Guys
1920168594 · Oct 31
$7,159 NZD
$4,035 USD
View
7 more retailers have this diamond
Prices start from $1,269 NZDSave up to $5,891 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
3.91ct Radiant
$1,269 NZD