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Radiant|Lab Grown|IGI

5.20ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG811635548

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

Certificate IGI LG811635548

Diamond specifications and retailer prices

From $9,159 USD
As of October 27, 2026
Save $19,551 USD (68%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $28,710 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 5.2ct lab-grown radiant diamond

This 5.2ct 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 LG811635548 or 811635548. Listed at 14 retailers as of October 27, 2026, with prices from $9,159 to $28,710, a $19,551 spread on the same certified stone. Brilliant Earth lists it at $28,710. 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

5.20
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.1°
Pavilion angle33.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811635548
Dimensions12.14 × 8.65 × 5.65 mm
L/W Ratio1.40
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
12.14 mm8.65 mm5.20 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811635548
Side View
Table 63.0%Crown 42.1°Girdle: Slightly ThickPavilion 33.2°Culet: NoneDepth 65.3%

Caratlytics Score

How it works →
A+
Exceptional
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 27
Current: $28,710 USD|Low: $9,159 USD|High: $61,840 USD|Avg: $19,786 USD|-3.0%
Brilliant Earth
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
October 29, 2026
Retailer 8$9,159 USD
Retailer 10$9,213 USD
Retailer 5$9,332 USD
Retailer 3$9,525 USD
Retailer 13$10,515 USD
Retailer 14$10,990 USD
Retailer 11$11,630 USD
Retailer 7$12,210 USD
Retailer 9$12,287 USD
Retailer 2$18,940 USD
Retailer 4$20,682 USD
Brilliant Earth$28,710 USD
Retailer 6$30,870 USD
Retailer 12$57,150 USD

33 data points across 14 retailers

14 retailers$9,159 USD to $28,710 USD

A+
Cheapest Retailer
-
$9,159 USD
A
Retailer 2
-
$9,213 USD
View
A
Retailer 3
-
$9,332 USD
View
A
Retailer 4
-
$9,525 USD
View
A
Retailer 5
-
$10,515 USD
View
A
Retailer 6
-
$10,990 USD
View
A
Retailer 7
-
$11,630 USD
View
A
Retailer 8
-
$12,210 USD
View
A
Retailer 9
-
$12,287 USD
View
A
Retailer 10
-
$18,940 USD
£14,913 GBP
View
Retailer 11
-
$19,321 USD
View
Price last confirmed 101 days ago
B+
Retailer 12
-
$20,682 USD
€19,697 EUR
View
Most Expensive
B
Brilliant Earth
20785822Y · Oct 29
$28,710 USD
View
12 more retailers have this diamond
Prices start from $9,159 USDSave up to $19,551 USD

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+
5.20ct Radiant
$9,159 USD