Radiant|Lab Grown|IGI

5.10ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG787621181

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

Certificate IGI LG787621181

Diamond specifications and retailer prices

From $10,572 USD
As of October 29, 2026
Save $26,397 USD (71%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $36,969 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 LG787621181 or 787621181. Listed at 13 retailers as of October 29, 2026, with prices from $10,572 to $36,969, a $26,397 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG787621181
Dimensions12.03 × 8.63 × 5.75 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
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG787621181
Side View
Table 63.0%Crown 44.4°Girdle: MED-STKPavilion 34°Culet: NoneDepth 66.6%

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 29
Current: $14,457 USD|Low: $10,199 USD|High: $66,280 USD|Avg: $23,023 USD|-17.5%
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
Taylor and Hart
October 30, 2026
Retailer 5$10,199 USD
Retailer 10$10,572 USD
Retailer 12$11,324 USD
Retailer 13$11,819 USD
Retailer 9$12,340 USD
Retailer 1$14,457 USD
Retailer 7$19,183 USD
Retailer 8$20,420 USD
Retailer 3$22,219 USD
Retailer 6$24,682 USD
Retailer 4$28,160 USD
Retailer 11$33,660 USD
Taylor and Hart$36,969 USD
Retailer 2$66,280 USD

34 data points across 14 retailers

13 retailers$10,572 USD to $36,969 USD

A
Cheapest Retailer
-
$10,572 USD
A
Retailer 2
-
$11,324 USD
View
A
Retailer 3
-
$11,819 USD
View
A
Retailer 4
-
$12,340 USD
View
A
Retailer 5
-
$14,457 USD
£11,383 GBP
View
A
Retailer 6
-
$19,183 USD
£15,105 GBP
View
B+
Retailer 7
-
$20,420 USD
€19,448 EUR
View
B+
Retailer 8
-
$22,219 USD
View
B+
Retailer 9
-
$24,682 USD
ZAR 398,734 ZAR
View
B+
Retailer 10
-
$28,160 USD
View
B+
Retailer 11
-
$33,660 USD
View
Most Expensive
B
Taylor and Hart
96R8Q77 · Oct 30
$36,969 USD
View
11 more retailers have this diamond
Prices start from $10,572 USDSave up to $26,397 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
$10,572 USD