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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 €9,898 EUR
$11,058 USD
As of October 30, 2026
Save €24,320 EUR (71%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: €34,218 EUR at Taylor and Hart · As of October 31, 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 30, 2026, with prices from €9,898 to €34,218, a €24,320 spread on the same certified stone. Taylor and Hart lists it at €34,218. 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
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

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A
Excellent
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 30
Current: €18,313 EUR|Low: €9,626 EUR|High: €38,911 EUR|Avg: €17,738 EUR|-16.2%
Retailer 1
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Retailer 18
Taylor and Hart
October 31, 2026
Retailer 8€9,898 EUR
Retailer 5€10,038 EUR
Retailer 13€10,294 EUR
Retailer 18€10,577 EUR
Retailer 9€10,761 EUR
Retailer 6€11,085 EUR
Retailer 16€11,327 EUR
Retailer 2€11,481 EUR
Retailer 10€11,481 EUR
Retailer 17€11,766 EUR
Retailer 15€12,248 EUR
Retailer 14€12,372 EUR
Retailer 11€13,675 EUR
Retailer 7€16,451 EUR
Retailer 12€17,719 EUR
Retailer 1€18,313 EUR
Retailer 4€21,000 EUR
Retailer 3€31,994 EUR
Taylor and Hart€34,218 EUR

41 data points across 19 retailers

19 retailers€9,898 EUR to €34,218 EUR

A
Cheapest Retailer
-
€9,898 EUR
$11,058 USD
A
Retailer 2
-
€10,038 EUR
$11,214 USD
View
A
Retailer 3
-
€10,294 EUR
$11,500 USD
View
A
Retailer 4
-
€10,577 EUR
$11,817 USD
View
A
Retailer 5
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€10,761 EUR
$12,022 USD
View
A
Retailer 6
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€11,085 EUR
$12,384 USD
View
Final sale: no returns
A
Retailer 7
-
€11,327 EUR
$12,655 USD
View
A
Retailer 8
-
€11,481 EUR
$12,827 USD
View
Retailer 9
-
€11,481 EUR
$12,827 USD
View
Price last confirmed 15 days ago
Retailer 10
-
€11,766 EUR
$13,145 USD
View
Price last confirmed 13 days ago
A
Retailer 11
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€12,248 EUR
$13,684 USD
View
A
Retailer 12
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€12,372 EUR
$13,822 USD
View
A
Retailer 13
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€13,675 EUR
£12,030 GBP
View
A
Retailer 14
-
€16,451 EUR
£14,472 GBP
View
B+
Retailer 15
-
€17,719 EUR
£15,587 GBP
View
B+
Retailer 16
-
€18,313 EUR
View
B+
Retailer 17
-
€21,000 EUR
$23,461 USD
View
B
Retailer 18
-
€31,994 EUR
$35,744 USD
View
Most Expensive
B
Taylor and Hart
HJ0E7UE · Oct 31
€34,218 EUR
$38,229 USD
View
18 more retailers have this diamond
Prices start from €9,898 EURSave up to €24,320 EUR

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
€9,898 EUR