Radiant|Lab Grown|IGI

5.10ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG828616343

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

Certificate IGI LG828616343

Diamond specifications and retailer prices

From $10,854 USD
As of October 31, 2026
Save $22,375 USD (67%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $33,229 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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG828616343 or 828616343. Listed at 14 retailers as of October 30, 2026, with prices from $10,854 to $33,229, a $22,375 spread on the same certified stone. Taylor and Hart lists it at $33,229. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.9°
Pavilion angle33.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828616343
Dimensions12.16 × 8.68 × 5.63 mm
L/W Ratio1.40
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
12.16 mm8.68 mm5.10 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828616343
Side View
Table 63.0%Crown 40.9°Girdle: MediumPavilion 33.4°Culet: NoneDepth 64.9%

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 31
Current: $10,854 USD|Low: $10,854 USD|High: $61,861 USD|Avg: $22,821 USD|-9.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Taylor and Hart
October 31, 2026
Retailer 1$10,854 USD
Retailer 2$10,975 USD
Retailer 7$11,533 USD
Retailer 3$11,950 USD
Retailer 9$12,764 USD
Retailer 6$15,870 USD
Retailer 11$18,379 USD
Retailer 12$19,059 USD
Retailer 5$19,319 USD
Retailer 10$21,460 USD
Retailer 4$31,416 USD
Taylor and Hart$33,229 USD
Retailer 8$57,442 USD

19 data points across 13 retailers

14 retailers$10,854 USD to $33,229 USD

A
Cheapest Retailer
-
$10,854 USD
A
Retailer 2
-
$10,975 USD
View
A
Retailer 3
-
$11,533 USD
HK$90,100 HKD
View
A
Retailer 4
-
$11,950 USD
View
A
Retailer 5
-
$12,764 USD
£10,050 GBP
View
A
Retailer 6
-
$15,870 USD
View
A
Retailer 7
-
$18,379 USD
£14,472 GBP
View
Retailer 8
-
$19,059 USD
€18,151 EUR
View
Price last confirmed 7 days ago
B+
Retailer 9
-
$19,319 USD
View
B+
Retailer 10
-
$21,460 USD
ZAR 346,688 ZAR
View
B+
Retailer 11
-
$22,950 USD
View
B
Retailer 12
-
$31,416 USD
View
Most Expensive
B
Taylor and Hart
8M0LO44 · Oct 30
$33,229 USD
View
12 more retailers have this diamond
Prices start from $10,854 USDSave up to $22,375 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
$10,854 USD