Radiant|Lab Grown|IGI

1.09ct E IF Radiant Lab Grown Diamond

ID • E/IF • IGI LG789604613

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

Certificate IGI LG789604613

Diamond specifications and retailer prices

From HK$1,695 HKD
$216 USD
As of November 1, 2026
Save HK$9,446 HKD (85%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$11,141 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.09ct lab-grown radiant diamond

This 1.09ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG789604613 or 789604613. Listed at 21 retailers as of October 31, 2026, with prices from HK$1,695 to HK$11,141, a HK$9,446 spread on the same certified stone. Brilliant Earth lists it at HK$11,141. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.09
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG789604613
Dimensions7.28 × 5.03 × 3.43 mm
L/W Ratio1.45
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
7.28 mm5.03 mm1.09 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG789604613
Side View
Table 65.0%Crown 44°Girdle: Slightly ThickPavilion 35.1°Culet: NoneDepth 68.2%

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: Nov 1
Current: HK$11,141 HKD|Low: HK$1,695 HKD|High: HK$14,436 HKD|Avg: HK$4,754 HKD|-22.8%
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
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 5HK$1,695 HKD
Retailer 9HK$1,703 HKD
Retailer 18HK$1,992 HKD
Retailer 8HK$2,205 HKD
Retailer 10HK$2,205 HKD
Retailer 14HK$3,139 HKD
Retailer 11HK$3,236 HKD
Retailer 13HK$3,272 HKD
Retailer 2HK$3,415 HKD
Retailer 3HK$4,354 HKD
Retailer 15HK$4,503 HKD
Retailer 16HK$4,574 HKD
Retailer 17HK$4,990 HKD
Retailer 7HK$5,092 HKD
Retailer 4HK$6,447 HKD
Retailer 12HK$8,758 HKD
Retailer 6HK$9,181 HKD
Brilliant EarthHK$11,141 HKD

38 data points across 18 retailers

21 retailersHK$1,695 HKD to HK$11,141 HKD

A
Cheapest Retailer
-
HK$1,695 HKD
$216 USD
Final sale: no returns
Retailer 2
-
HK$1,703 HKD
$217 USD
View
Price last confirmed 30 days ago
Retailer 3
-
HK$1,992 HKD
£200 GBP
View
Price last confirmed 16 days ago
Retailer 4
-
HK$2,063 HKD
$263 USD
View
Price last confirmed 35 days ago
Retailer 5
-
HK$2,205 HKD
$281 USD
View
Price last confirmed 25 days ago
Retailer 6
-
HK$2,205 HKD
$281 USD
View
Price last confirmed 29 days ago
A
Retailer 7
-
HK$3,139 HKD
€381 EUR
View
A
Retailer 8
-
HK$3,236 HKD
ZAR 6,663 ZAR
View
A
Retailer 9
-
HK$3,272 HKD
$417 USD
View
A
Retailer 10
-
HK$3,415 HKD
£343 GBP
View
A
Retailer 11
-
HK$4,354 HKD
$555 USD
View
A
Retailer 12
-
HK$4,503 HKD
$574 USD
View
A
Retailer 13
-
HK$4,574 HKD
A$897 AUD
View
B+
Retailer 14
-
HK$4,990 HKD
$636 USD
View
A
Retailer 15
-
HK$5,092 HKD
SGD 877 SGD
View
B+
Retailer 16
-
HK$6,447 HKD
$822 USD
View
Retailer 17
-
HK$7,077 HKD
$902 USD
View
Price last confirmed 32 days ago
Retailer 18
-
HK$7,180 HKD
A$1,408 AUD
View
Price last confirmed 138 days ago
B+
Retailer 19
-
HK$8,758 HKD
£879 GBP
View
B
Retailer 20
-
HK$9,181 HKD
$1,170 USD
View
Most Expensive
B
Brilliant Earth
18991251A · Oct 31
HK$11,141 HKD
$1,420 USD
View
20 more retailers have this diamond
Prices start from HK$1,695 HKDSave up to HK$9,446 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
1.09ct Radiant
HK$1,695 HKD