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Radiant|Lab Grown|IGI

4.02ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG816630988

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

Certificate IGI LG816630988

Diamond specifications and retailer prices

From $7,796 NZD
$4,394 USD
As of October 30, 2026
Save $24,466 NZD (76%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $32,262 NZD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.02ct lab-grown radiant diamond

This 4.02ct lab-grown radiant sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG816630988 or 816630988. Listed at 17 retailers as of October 30, 2026, with prices from $7,796 to $32,262, a $24,466 spread on the same certified stone. Taylor and Hart lists it at $32,262. 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

4.02
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.6°
Pavilion angle35.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816630988
Dimensions11.08 × 7.88 × 5.40 mm
L/W Ratio1.41
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.08 mm7.88 mm4.02 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816630988
Side View
Table 63.0%Crown 43.6°Girdle: Slightly ThickPavilion 35.7°Culet: NoneDepth 68.5%

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 30
Current: $14,012 NZD|Low: $7,796 NZD|High: $38,896 NZD|Avg: $15,290 NZD|-23.7%
Retailer 1
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
Taylor and Hart
October 31, 2026
Retailer 6$7,796 NZD
Retailer 12$8,171 NZD
Retailer 4$8,731 NZD
Retailer 8$9,045 NZD
Retailer 16$9,045 NZD
Retailer 11$9,120 NZD
Retailer 14$10,239 NZD
Retailer 7$11,302 NZD
Retailer 9$11,630 NZD
Retailer 13$11,769 NZD
Retailer 5$12,736 NZD
Retailer 15$13,996 NZD
Retailer 1$14,012 NZD
Retailer 3$16,921 NZD
Retailer 10$18,827 NZD
Retailer 2$25,132 NZD
Taylor and Hart$32,262 NZD

40 data points across 17 retailers

17 retailers$7,796 NZD to $32,262 NZD

A
Cheapest Retailer
-
$7,796 NZD
$4,394 USD
A
Retailer 2
-
$8,171 NZD
$4,605 USD
View
A
Retailer 3
-
$8,731 NZD
$4,921 USD
View
Final sale: no returns
A
Retailer 4
-
$9,045 NZD
$5,098 USD
View
Retailer 5
-
$9,045 NZD
$5,098 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
$9,120 NZD
$5,140 USD
View
A
Retailer 7
-
$10,239 NZD
$5,771 USD
View
A
Retailer 8
-
$11,302 NZD
$6,370 USD
View
A
Retailer 9
-
$11,630 NZD
£5,161 GBP
View
A
Retailer 10
-
$11,769 NZD
$6,633 USD
View
B+
Retailer 11
-
$12,736 NZD
£5,652 GBP
View
B+
Retailer 12
-
$13,996 NZD
$7,888 USD
View
B+
Retailer 13
-
$14,012 NZD
€7,521 EUR
View
B+
Retailer 14
-
$16,921 NZD
$9,537 USD
View
B+
Retailer 15
-
$18,827 NZD
£8,355 GBP
View
B
Retailer 16
-
$25,132 NZD
$14,165 USD
View
Most Expensive
B
Taylor and Hart
RDWU3MF · Oct 31
$32,262 NZD
$18,183 USD
View
16 more retailers have this diamond
Prices start from $7,796 NZDSave up to $24,466 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
4.02ct Radiant
$7,796 NZD