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Radiant|Lab Grown|IGI

5.10ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG784644672

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

Certificate IGI LG784644672

Diamond specifications and retailer prices

From $15,944 NZD
$8,986 USD
As of October 30, 2026
Save $35,580 NZD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $51,524 NZD at Frank Darling · As of October 31, 2026
View at Frank Darling

About this 5.1ct lab-grown radiant diamond

This 5.1ct lab-grown radiant sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG784644672 or 784644672. Listed at 15 retailers as of October 30, 2026, with prices from $15,944 to $51,524, a $35,580 spread on the same certified stone. Frank Darling lists it at $51,524. 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

5.10
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.9°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784644672
Dimensions12.06 × 8.45 × 5.88 mm
L/W Ratio1.43
Culet sizePointed
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
12.06 mm8.45 mm5.10 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784644672
Side View
Table 67.0%Crown 40.9°Girdle: STK-THKPavilion 37.1°Culet: NoneDepth 69.6%

Caratlytics Score

How it works →
A+
Exceptional
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: $51,524 NZD|Low: $15,944 NZD|High: $107,647 NZD|Avg: $31,649 NZD|-12.5%
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
October 31, 2026
Retailer 11$15,944 NZD
Retailer 13$16,043 NZD
Retailer 6$16,240 NZD
Retailer 5$16,583 NZD
Retailer 3$18,311 NZD
Retailer 4$19,132 NZD
Retailer 14$20,247 NZD
Retailer 12$21,393 NZD
Retailer 10$21,478 NZD
Retailer 7$21,515 NZD
Retailer 9$32,971 NZD
Retailer 8$35,468 NZD
Retailer 2$36,083 NZD
Frank Darling$51,524 NZD
Retailer 15$99,485 NZD

39 data points across 15 retailers

15 retailers$15,944 NZD to $51,524 NZD

A+
Cheapest Retailer
-
$15,944 NZD
$8,986 USD
A
Retailer 2
-
$16,043 NZD
$9,042 USD
View
A
Retailer 3
-
$16,240 NZD
$9,153 USD
View
A
Retailer 4
-
$16,583 NZD
$9,346 USD
View
A
Retailer 5
-
$18,311 NZD
$10,320 USD
View
A
Retailer 6
-
$19,132 NZD
$10,783 USD
View
A
Retailer 7
-
$20,247 NZD
$11,411 USD
View
A
Retailer 8
-
$21,393 NZD
$12,057 USD
View
A
Retailer 9
-
$21,478 NZD
$12,105 USD
View
A
Retailer 10
-
$21,515 NZD
$12,126 USD
View
Final sale: no returns
A
Retailer 11
-
$32,971 NZD
£14,632 GBP
View
B+
Retailer 12
-
$35,468 NZD
$19,990 USD
View
B+
Retailer 13
-
$36,083 NZD
€19,368 EUR
View
Most Expensive
B+
Frank Darling
P83F-5EL · Oct 31
$51,524 NZD
$29,039 USD
View
13 more retailers have this diamond
Prices start from $15,944 NZDSave up to $35,580 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+
5.10ct Radiant
$15,944 NZD