CaratHunter
Plans
Radiant|Lab Grown|IGI

5.10ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG816630992

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

Certificate IGI LG816630992

Diamond specifications and retailer prices

From $11,058 USD
As of October 27, 2026
Save $27,171 USD (71%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $38,229 USD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

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 LG816630992 or 816630992. Listed at 19 retailers as of October 27, 2026, with prices from $11,058 to $38,229, a $27,171 spread on the same certified stone. Taylor and Hart lists it at $38,229. 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
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle47.1°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816630992
Dimensions12.12 × 8.62 × 5.65 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
12.12 mm8.62 mm5.10 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816630992
Side View
Table 63.0%Crown 47.1°Girdle: Slightly ThickPavilion 34.9°Culet: NoneDepth 65.5%

Caratlytics Score

How it works →
A
Excellent
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: $15,278 USD|Low: $10,754 USD|High: $43,472 USD|Avg: $19,841 USD|-17.3%
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
Retailer 17
Retailer 18
Taylor and Hart
October 30, 2026
Retailer 8$11,058 USD
Retailer 5$11,214 USD
Retailer 13$11,500 USD
Retailer 18$11,817 USD
Retailer 9$12,022 USD
Retailer 6$12,384 USD
Retailer 16$12,655 USD
Retailer 2$12,827 USD
Retailer 10$12,827 USD
Retailer 17$13,145 USD
Retailer 15$13,684 USD
Retailer 14$13,822 USD
Retailer 1$15,278 USD
Retailer 7$18,379 USD
Retailer 11$19,795 USD
Retailer 12$20,407 USD
Retailer 4$23,461 USD
Retailer 3$35,744 USD
Taylor and Hart$38,229 USD

41 data points across 19 retailers

19 retailers$11,058 USD to $38,229 USD

A
Cheapest Retailer
-
$11,058 USD
A
Retailer 2
-
$11,214 USD
View
A
Retailer 3
-
$11,500 USD
View
A
Retailer 4
-
$11,817 USD
View
A
Retailer 5
-
$12,022 USD
View
A
Retailer 6
-
$12,384 USD
View
Final sale: no returns
A
Retailer 7
-
$12,655 USD
View
A
Retailer 8
-
$12,827 USD
View
Retailer 9
-
$12,827 USD
View
Price last confirmed 13 days ago
Retailer 10
-
$13,145 USD
View
Price last confirmed 11 days ago
A
Retailer 11
-
$13,684 USD
View
A
Retailer 12
-
$13,822 USD
View
A
Retailer 13
-
$15,278 USD
£12,030 GBP
View
A
Retailer 14
-
$18,379 USD
£14,472 GBP
View
B+
Retailer 15
-
$19,795 USD
£15,587 GBP
View
B+
Retailer 16
-
$20,407 USD
€19,435 EUR
View
B+
Retailer 17
-
$23,461 USD
View
B
Retailer 18
-
$35,744 USD
View
Most Expensive
B
Taylor and Hart
HJ0E7UE · Oct 30
$38,229 USD
View
18 more retailers have this diamond
Prices start from $11,058 USDSave up to $27,171 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
5.10ct Radiant
$11,058 USD