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Radiant|Lab Grown|IGI

1.35ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG728540141

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

Certificate IGI LG728540141

Diamond specifications and retailer prices

From HK$2,377 HKD
$303 USD
As of October 30, 2026
Save HK$15,432 HKD (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$17,810 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.35ct lab-grown radiant diamond

This 1.35ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG728540141 or 728540141. Listed at 22 retailers as of October 29, 2026, with prices from HK$2,377 to HK$17,810, a HK$15,432 spread on the same certified stone. Brilliant Earth lists it at HK$17,810. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.35
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.5°
Pavilion angle34.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728540141
Dimensions7.81 × 5.46 × 3.65 mm
L/W Ratio1.43
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.81 mm5.46 mm1.35 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728540141
Side View
Table 66.0%Crown 44.5°Girdle: Slightly ThickPavilion 34.9°Culet: NoneDepth 66.8%

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 30
Current: HK$17,810 HKD|Low: HK$2,283 HKD|High: HK$17,810 HKD|Avg: HK$6,748 HKD|+1.3%
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
Retailer 14
Retailer 15
October 31, 2026
Retailer 3HK$2,377 HKD
Retailer 7HK$2,660 HKD
Retailer 4HK$2,950 HKD
Retailer 15HK$3,962 HKD
Retailer 11HK$4,158 HKD
Retailer 6HK$4,927 HKD
Retailer 2HK$4,992 HKD
Retailer 10HK$5,067 HKD
Retailer 8HK$5,239 HKD
Retailer 9HK$7,196 HKD
Retailer 14HK$9,062 HKD
Retailer 5HK$9,593 HKD
Retailer 12HK$11,837 HKD
Retailer 13HK$14,593 HKD
Brilliant EarthHK$17,810 HKD

45 data points across 15 retailers

22 retailersHK$2,377 HKD to HK$17,810 HKD

A
Cheapest Retailer
-
HK$2,377 HKD
$303 USD
A
Retailer 2
-
HK$2,660 HKD
$339 USD
View
Final sale: no returns
A
Retailer 3
-
HK$2,762 HKD
$352 USD
View
A
Retailer 4
-
HK$2,950 HKD
$376 USD
View
A
Retailer 5
-
HK$2,950 HKD
$376 USD
View
A
Retailer 6
-
HK$3,962 HKD
$505 USD
View
A
Retailer 7
-
HK$4,158 HKD
$530 USD
View
A
Retailer 8
-
HK$4,927 HKD
$628 USD
View
A
Retailer 9
-
HK$4,992 HKD
€606 EUR
View
A
Retailer 10
-
HK$5,067 HKD
ZAR 10,434 ZAR
View
A
Retailer 11
-
HK$5,239 HKD
£526 GBP
View
B+
Retailer 12
-
HK$7,196 HKD
A$1,411 AUD
View
B+
Retailer 13
-
HK$7,626 HKD
$972 USD
View
B+
Retailer 14
-
HK$7,916 HKD
$1,009 USD
View
B+
Retailer 15
-
HK$9,062 HKD
$1,155 USD
View
B+
Retailer 16
-
HK$9,478 HKD
$1,208 USD
View
Retailer 17
-
HK$9,593 HKD
A$1,881 AUD
View
Price last confirmed 29 days ago
B+
Retailer 18
-
HK$9,851 HKD
$1,256 USD
View
B+
Retailer 19
-
HK$11,837 HKD
£1,188 GBP
View
B
Retailer 20
-
HK$11,947 HKD
$1,523 USD
View
Retailer 21
-
HK$14,593 HKD
$1,860 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
15548548A · Oct 29
HK$17,810 HKD
$2,270 USD
View
21 more retailers have this diamond
Prices start from HK$2,377 HKDSave up to HK$15,432 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
1.35ct Radiant
HK$2,377 HKD