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Radiant|Lab Grown|IGI

5.21ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG784644229

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

Certificate IGI LG784644229

Diamond specifications and retailer prices

From $11,765 SGD
$9,176 USD
As of October 27, 2026
Save $26,261 SGD (69%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $38,026 SGD at Frank Darling · As of October 29, 2026
View at Frank Darling

About this 5.21ct lab-grown radiant diamond

This 5.21ct 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 LG784644229 or 784644229. Listed at 15 retailers as of October 27, 2026, with prices from $11,765 to $38,026, a $26,261 spread on the same certified stone. Frank Darling lists it at $38,026. 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

5.21
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle34.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784644229
Dimensions12.05 × 8.70 × 5.77 mm
L/W Ratio1.39
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
12.05 mm8.70 mm5.21 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784644229
Side View
Table 63.0%Crown 40.1°Girdle: ThickPavilion 34.5°Culet: NoneDepth 66.3%

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 27
Current: $38,026 SGD|Low: $11,765 SGD|High: $79,439 SGD|Avg: $24,655 SGD|-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 29, 2026
Retailer 9$11,765 SGD
Retailer 11$11,834 SGD
Retailer 5$11,988 SGD
Retailer 3$12,235 SGD
Retailer 14$13,507 SGD
Retailer 15$14,117 SGD
Retailer 12$14,939 SGD
Retailer 8$15,680 SGD
Retailer 10$15,783 SGD
Retailer 7$15,876 SGD
Retailer 2$24,328 SGD
Retailer 4$26,567 SGD
Retailer 6$36,873 SGD
Frank Darling$38,026 SGD
Retailer 13$73,413 SGD

35 data points across 15 retailers

15 retailers$11,765 SGD to $38,026 SGD

A+
Cheapest Retailer
-
$11,765 SGD
$9,176 USD
A
Retailer 2
-
$11,834 SGD
$9,230 USD
View
A
Retailer 3
-
$11,988 SGD
$9,350 USD
View
A
Retailer 4
-
$12,235 SGD
$9,543 USD
View
A
Retailer 5
-
$13,507 SGD
$10,535 USD
View
A
Retailer 6
-
$14,117 SGD
$11,011 USD
View
A
Retailer 7
-
$14,939 SGD
$11,652 USD
View
A
Retailer 8
-
$15,680 SGD
$12,230 USD
View
A
Retailer 9
-
$15,783 SGD
$12,310 USD
View
A
Retailer 10
-
$15,876 SGD
$12,383 USD
View
Final sale: no returns
A
Retailer 11
-
$24,328 SGD
£14,941 GBP
View
B+
Retailer 12
-
$26,567 SGD
€19,735 EUR
View
B
Retailer 13
-
$36,873 SGD
$28,760 USD
View
Most Expensive
B+
Frank Darling
P83F-17EL · Oct 29
$38,026 SGD
$29,659 USD
View
13 more retailers have this diamond
Prices start from $11,765 SGDSave up to $26,261 SGD

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+
5.21ct Radiant
$11,765 SGD