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Radiant|Lab Grown|IGI

1.51ct E FL Radiant Lab Grown Diamond

EX • E/FL • IGI LG768630808

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

Certificate IGI LG768630808

Diamond specifications and retailer prices

From HK$5,122 HKD
As of October 30, 2026
Save HK$20,769 HKD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$25,891 HKD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.51ct lab-grown radiant diamond

This 1.51ct lab-grown radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG768630808 or 768630808. Listed at 14 retailers as of October 30, 2026, with prices from HK$5,122 to HK$25,891, a HK$20,769 spread on the same certified stone. Brilliant Earth lists it at HK$25,891. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
E
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.1°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768630808
Dimensions8.44 × 5.78 × 3.73 mm
L/W Ratio1.46
Culet sizePointed
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
8.44 mm5.78 mm1.51 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768630808
Side View
Table 62.0%Crown 40.1°Girdle: Slightly ThickPavilion 34.1°Culet: NoneDepth 64.5%

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$25,891 HKD|Low: HK$5,122 HKD|High: HK$30,991 HKD|Avg: HK$13,128 HKD|-16.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 30, 2026
Retailer 9HK$5,122 HKD
Retailer 4HK$6,316 HKD
Retailer 11HK$6,324 HKD
Retailer 8HK$6,854 HKD
Retailer 2HK$7,400 HKD
Retailer 6HK$7,678 HKD
Retailer 3HK$8,411 HKD
Retailer 13HK$10,425 HKD
Retailer 12HK$14,606 HKD
Retailer 5HK$15,401 HKD
Retailer 7HK$16,431 HKD
Retailer 10HK$16,719 HKD
Brilliant EarthHK$25,891 HKD

41 data points across 13 retailers

14 retailersHK$5,122 HKD to HK$25,891 HKD

A
Cheapest Retailer
-
HK$5,122 HKD
A
Retailer 2
-
HK$6,316 HKD
$805 USD
View
A
Retailer 3
-
HK$6,324 HKD
$806 USD
View
Retailer 4
-
HK$6,854 HKD
€832 EUR
View
Price last confirmed 8 days ago
A
Retailer 5
-
HK$7,400 HKD
£743 GBP
View
A
Retailer 6
-
HK$7,678 HKD
ZAR 15,810 ZAR
View
B+
Retailer 7
-
HK$8,411 HKD
$1,072 USD
View
B+
Retailer 8
-
HK$10,425 HKD
$1,329 USD
View
B
Retailer 9
-
HK$14,606 HKD
$1,862 USD
View
B
Retailer 10
-
HK$15,401 HKD
$1,963 USD
View
B
Retailer 11
-
HK$16,431 HKD
£1,649 GBP
View
B+
Retailer 12
-
HK$16,719 HKD
$2,131 USD
View
Retailer 13
-
HK$25,651 HKD
$3,269 USD
View
Price last confirmed 73 days ago
Most Expensive
B
Brilliant Earth
18919100A · Oct 30
HK$25,891 HKD
$3,300 USD
View
13 more retailers have this diamond
Prices start from HK$5,122 HKDSave up to HK$20,769 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
1.51ct Radiant
HK$5,122 HKD