Radiant|Lab Grown|IGI

1.28ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG732507011

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

Certificate IGI LG732507011

Diamond specifications and retailer prices

From HK$2,267 HKD
$289 USD
As of October 30, 2026
Save HK$13,738 HKD (86%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: HK$16,005 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.28ct lab-grown radiant diamond

This 1.28ct 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 LG732507011 or 732507011. Listed at 24 retailers as of October 30, 2026, with prices from HK$2,267 to HK$16,005, a HK$13,738 spread on the same certified stone. Brilliant Earth lists it at HK$16,005. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.2°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG732507011
Dimensions7.79 × 5.28 × 3.59 mm
L/W Ratio1.48
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.79 mm5.28 mm1.28 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG732507011
Side View
Table 65.0%Crown 43.2°Girdle: MED-STKPavilion 35.4°Culet: NoneDepth 68.0%

Caratlytics Score

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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$16,005 HKD|Low: HK$2,173 HKD|High: HK$16,005 HKD|Avg: HK$6,365 HKD
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
November 1, 2026
Retailer 4HK$2,267 HKD
Retailer 7HK$2,534 HKD
Retailer 5HK$2,809 HKD
Retailer 3HK$3,782 HKD
Retailer 12HK$4,041 HKD
Retailer 8HK$4,762 HKD
Retailer 6HK$4,778 HKD
Retailer 11HK$4,829 HKD
Retailer 2HK$4,970 HKD
Retailer 10HK$6,854 HKD
Retailer 15HK$8,630 HKD
Retailer 9HK$8,863 HKD
Retailer 13HK$11,279 HKD
Retailer 14HK$11,729 HKD
Brilliant EarthHK$16,005 HKD

43 data points across 15 retailers

24 retailersHK$2,267 HKD to HK$16,005 HKD

A
Cheapest Retailer
-
HK$2,267 HKD
$289 USD
A
Retailer 2
-
HK$2,534 HKD
$323 USD
View
Final sale: no returns
A
Retailer 3
-
HK$2,628 HKD
$335 USD
View
A
Retailer 4
-
HK$2,809 HKD
$358 USD
View
A
Retailer 5
-
HK$2,809 HKD
$358 USD
View
A
Retailer 6
-
HK$3,782 HKD
$482 USD
View
A
Retailer 7
-
HK$4,041 HKD
$515 USD
View
A
Retailer 8
-
HK$4,762 HKD
€578 EUR
View
A
Retailer 9
-
HK$4,778 HKD
$609 USD
View
A
Retailer 10
-
HK$4,829 HKD
ZAR 9,943 ZAR
View
A
Retailer 11
-
HK$4,970 HKD
£499 GBP
View
B+
Retailer 12
-
HK$6,854 HKD
A$1,344 AUD
View
B+
Retailer 13
-
HK$6,912 HKD
$881 USD
View
B+
Retailer 14
-
HK$8,630 HKD
$1,100 USD
View
B+
Retailer 15
-
HK$8,863 HKD
A$1,738 AUD
View
B+
Retailer 16
-
HK$9,030 HKD
$1,151 USD
View
B+
Retailer 17
-
HK$9,418 HKD
$1,200 USD
View
B+
Retailer 18
-
HK$10,003 HKD
$1,275 USD
View
B
Retailer 19
-
HK$11,000 HKD
£1,104 GBP
View
B+
Retailer 20
-
HK$11,279 HKD
£1,132 GBP
View
B
Retailer 21
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HK$11,590 HKD
$1,477 USD
View
Retailer 22
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HK$11,729 HKD
$1,495 USD
View
Price last confirmed 10 days ago
Retailer 23
-
HK$14,475 HKD
$1,845 USD
View
Price last confirmed 10 days ago
Most Expensive
B
Brilliant Earth
15733199A · Oct 31
HK$16,005 HKD
$2,040 USD
View
23 more retailers have this diamond
Prices start from HK$2,267 HKDSave up to HK$13,738 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
1.28ct Radiant
HK$2,267 HKD