Radiant|Lab Grown|IGI

5.13ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG816608497

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

Certificate IGI LG816608497

Diamond specifications and retailer prices

From $9,038 USD
As of October 30, 2026
Save $19,282 USD (68%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $28,320 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 5.13ct lab-grown radiant diamond

This 5.13ct 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 LG816608497 or 816608497. Listed at 12 retailers as of October 29, 2026, with prices from $9,038 to $28,320, a $19,282 spread on the same certified stone. Brilliant Earth lists it at $28,320. 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

5.13
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.2°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816608497
Dimensions12.20 × 8.59 × 5.54 mm
L/W Ratio1.42
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
12.20 mm8.59 mm5.13 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816608497
Side View
Table 66.0%Crown 40.2°Girdle: THK-VTKPavilion 34.1°Culet: NoneDepth 64.5%

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: $28,320 USD|Low: $9,038 USD|High: $61,020 USD|Avg: $20,449 USD|-17.3%
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
October 29, 2026
Retailer 7$9,038 USD
Retailer 4$9,207 USD
Retailer 13$9,399 USD
Retailer 11$10,380 USD
Retailer 12$10,845 USD
Retailer 10$11,477 USD
Retailer 8$12,125 USD
Retailer 6$12,155 USD
Retailer 2$18,689 USD
Retailer 3$20,405 USD
Brilliant Earth$28,320 USD
Retailer 5$30,136 USD
Retailer 9$56,400 USD

32 data points across 13 retailers

12 retailers$9,038 USD to $28,320 USD

A+
Cheapest Retailer
-
$9,038 USD
A
Retailer 2
-
$9,207 USD
View
A
Retailer 3
-
$9,399 USD
View
A
Retailer 4
-
$10,380 USD
View
A
Retailer 5
-
$10,845 USD
View
A
Retailer 6
-
$11,477 USD
View
A
Retailer 7
-
$12,125 USD
View
A
Retailer 8
-
$12,155 USD
View
A
Retailer 9
-
$18,689 USD
£14,716 GBP
View
B+
Retailer 10
-
$20,405 USD
€19,433 EUR
View
Most Expensive
B
Brilliant Earth
21060011Y · Oct 29
$28,320 USD
View
10 more retailers have this diamond
Prices start from $9,038 USDSave up to $19,282 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+
5.13ct Radiant
$9,038 USD