Radiant|Lab Grown|IGI

5.10ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG828681234

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

Certificate IGI LG828681234

Diamond specifications and retailer prices

From $11,324 USD
As of October 28, 2026
Save $25,645 USD (69%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $36,969 USD at Taylor and Hart · As of October 28, 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 LG828681234 or 828681234. Listed at 12 retailers as of October 28, 2026, with prices from $11,324 to $36,969, a $25,645 spread on the same certified stone. Taylor and Hart lists it at $36,969. 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 angle44°
Pavilion angle33.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828681234
Dimensions12.03 × 8.63 × 5.64 mm
L/W Ratio1.39
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
12.03 mm8.63 mm5.10 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828681234
Side View
Table 63.0%Crown 44°Girdle: Slightly ThickPavilion 33.7°Culet: NoneDepth 65.4%

Caratlytics Score

How it works →
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 28
Current: $19,183 USD|Low: $11,324 USD|High: $66,280 USD|Avg: $25,291 USD|-0.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
October 29, 2026
Retailer 7$11,324 USD
Retailer 8$11,819 USD
Retailer 6$12,340 USD
Retailer 3$14,370 USD
Retailer 1$19,183 USD
Retailer 5$20,420 USD
Retailer 9$22,219 USD
Retailer 4$24,585 USD
Retailer 2$33,660 USD
Taylor and Hart$36,969 USD
Retailer 10$66,280 USD

17 data points across 11 retailers

12 retailers$11,324 USD to $36,969 USD

A
Cheapest Retailer
-
$11,324 USD
A
Retailer 2
-
$11,819 USD
View
A
Retailer 3
-
$12,340 USD
View
A
Retailer 4
-
$14,370 USD
£11,315 GBP
View
A
Retailer 5
-
$19,183 USD
£15,105 GBP
View
B+
Retailer 6
-
$20,420 USD
€19,448 EUR
View
B+
Retailer 7
-
$22,219 USD
View
B+
Retailer 8
-
$24,585 USD
ZAR 397,170 ZAR
View
B+
Retailer 9
-
$28,160 USD
View
B
Retailer 10
-
$33,660 USD
View
Most Expensive
B
Taylor and Hart
QRRATCH · Oct 28
$36,969 USD
View
10 more retailers have this diamond
Prices start from $11,324 USDSave up to $25,645 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
$11,324 USD