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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 HK$86,758 HKD
$11,058 USD
As of October 30, 2026
Save HK$213,176 HKD (71%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$299,933 HKD 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 30, 2026, with prices from HK$86,758 to HK$299,933, a HK$213,176 spread on the same certified stone. Taylor and Hart lists it at HK$299,933. 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

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 30
Current: HK$160,517 HKD|Low: HK$84,373 HKD|High: HK$341,069 HKD|Avg: HK$155,480 HKD|-16.2%
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 31, 2026
Retailer 8HK$86,758 HKD
Retailer 5HK$87,982 HKD
Retailer 13HK$90,226 HKD
Retailer 18HK$92,713 HKD
Retailer 9HK$94,321 HKD
Retailer 6HK$97,161 HKD
Retailer 16HK$99,287 HKD
Retailer 2HK$100,637 HKD
Retailer 10HK$100,637 HKD
Retailer 17HK$103,132 HKD
Retailer 15HK$107,361 HKD
Retailer 14HK$108,443 HKD
Retailer 11HK$119,869 HKD
Retailer 7HK$144,200 HKD
Retailer 12HK$155,309 HKD
Retailer 1HK$160,517 HKD
Retailer 4HK$184,068 HKD
Retailer 3HK$280,435 HKD
Taylor and HartHK$299,933 HKD

41 data points across 19 retailers

19 retailersHK$86,758 HKD to HK$299,933 HKD

A
Cheapest Retailer
-
HK$86,758 HKD
$11,058 USD
A
Retailer 2
-
HK$87,982 HKD
$11,214 USD
View
A
Retailer 3
-
HK$90,226 HKD
$11,500 USD
View
A
Retailer 4
-
HK$92,713 HKD
$11,817 USD
View
A
Retailer 5
-
HK$94,321 HKD
$12,022 USD
View
A
Retailer 6
-
HK$97,161 HKD
$12,384 USD
View
Final sale: no returns
A
Retailer 7
-
HK$99,287 HKD
$12,655 USD
View
A
Retailer 8
-
HK$100,637 HKD
$12,827 USD
View
Retailer 9
-
HK$100,637 HKD
$12,827 USD
View
Price last confirmed 15 days ago
Retailer 10
-
HK$103,132 HKD
$13,145 USD
View
Price last confirmed 13 days ago
A
Retailer 11
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HK$107,361 HKD
$13,684 USD
View
A
Retailer 12
-
HK$108,443 HKD
$13,822 USD
View
A
Retailer 13
-
HK$119,869 HKD
£12,030 GBP
View
A
Retailer 14
-
HK$144,200 HKD
£14,472 GBP
View
B+
Retailer 15
-
HK$155,309 HKD
£15,587 GBP
View
B+
Retailer 16
-
HK$160,517 HKD
€19,485 EUR
View
B+
Retailer 17
-
HK$184,068 HKD
$23,461 USD
View
B
Retailer 18
-
HK$280,435 HKD
$35,744 USD
View
Most Expensive
B
Taylor and Hart
HJ0E7UE · Oct 30
HK$299,933 HKD
$38,229 USD
View
18 more retailers have this diamond
Prices start from HK$86,758 HKDSave up to HK$213,176 HKD

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
HK$86,758 HKD