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Radiant|Lab Grown|IGI

3.10ct E FL Radiant Lab Grown Diamond

EX • E/FL • IGI LG821638890

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

Certificate IGI LG821638890

Diamond specifications and retailer prices

From HK$15,536 HKD
$1,980 USD
As of October 29, 2026
Save HK$72,736 HKD (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$88,272 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.1ct lab-grown radiant diamond

This 3.1ct lab-grown radiant sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG821638890 or 821638890. Listed at 13 retailers as of October 29, 2026, with prices from HK$15,536 to HK$88,272, a HK$72,736 spread on the same certified stone. Brilliant Earth lists it at HK$88,272. 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

3.10
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.8°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821638890
Dimensions10.40 × 7.16 × 4.73 mm
L/W Ratio1.45
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
10.40 mm7.16 mm3.10 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821638890
Side View
Table 63.0%Crown 44.8°Girdle: MED-STKPavilion 34°Culet: NoneDepth 66.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: HK$88,272 HKD|Low: HK$15,340 HKD|High: HK$92,627 HKD|Avg: HK$48,302 HKD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 6HK$15,536 HKD
Retailer 10HK$20,189 HKD
Retailer 7HK$22,959 HKD
Retailer 2HK$25,203 HKD
Retailer 9HK$25,807 HKD
Retailer 12HK$30,401 HKD
Retailer 11HK$46,068 HKD
Retailer 5HK$49,432 HKD
Retailer 3HK$49,589 HKD
Retailer 4HK$71,120 HKD
Retailer 8HK$86,546 HKD
Brilliant EarthHK$88,272 HKD

27 data points across 12 retailers

13 retailersHK$15,536 HKD to HK$88,272 HKD

Retailer 1
-
HK$14,555 HKD
$1,855 USD
Price last confirmed 13 days ago
A
Retailer 2
-
HK$15,536 HKD
$1,980 USD
View
Retailer 3
-
HK$15,842 HKD
$2,019 USD
View
Price last confirmed 16 days ago
A
Retailer 4
-
HK$20,189 HKD
$2,573 USD
View
A
Retailer 5
-
HK$22,684 HKD
$2,891 USD
View
A
Retailer 6
-
HK$22,959 HKD
$2,926 USD
View
A
Retailer 7
-
HK$25,807 HKD
$3,289 USD
View
Retailer 8
-
HK$31,652 HKD
$4,034 USD
View
Price last confirmed 13 days ago
B+
Retailer 9
-
HK$46,068 HKD
£4,623 GBP
View
B+
Retailer 10
-
HK$49,432 HKD
$6,300 USD
View
Retailer 11
-
HK$49,589 HKD
$6,320 USD
View
Price last confirmed 14 days ago
B
Retailer 12
-
HK$86,546 HKD
$11,030 USD
View
Most Expensive
B
Brilliant Earth
22257764Y · Oct 29
HK$88,272 HKD
$11,250 USD
View
12 more retailers have this diamond
Prices start from HK$15,536 HKDSave up to HK$72,736 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
3.10ct Radiant
HK$15,536 HKD