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Radiant|Lab Grown|IGI

3.09ct I SI1 Radiant Lab Grown Diamond

ID • I/SI1 • IGI LG522239756

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

Certificate IGI LG522239756

Diamond specifications and retailer prices

From HK$5,204 HKD
As of November 6, 2026
Save HK$20,142 HKD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$71,929 HKD at Ting Diamond · As of November 6, 2026
View at Ting Diamond

About this 3.09ct lab-grown radiant diamond

This 3.09ct lab-grown radiant sits in the three to five carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG522239756 or 522239756. Listed at 16 retailers as of November 5, 2026, with a 387% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.09
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle32.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG522239756
Dimensions9.84 × 7.49 × 4.70 mm
L/W Ratio1.31
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.84 mm7.49 mm3.09 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG522239756
Side View
Table 67.0%Crown 44.4°Girdle: STK-THKPavilion 32.3°Culet: NoneDepth 62.8%

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: Nov 6
Current: HK$7,140 HKD|Low: HK$4,992 HKD|High: HK$53,216 HKD|Avg: HK$13,586 HKD|-1.7%
Retailer 1
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 6, 2026
Retailer 12HK$5,204 HKD
Retailer 2HK$5,659 HKD
Retailer 4HK$5,815 HKD
Retailer 3HK$6,035 HKD
Retailer 13HK$6,035 HKD
Retailer 1HK$7,140 HKD
Retailer 10HK$7,406 HKD
Retailer 6HK$8,433 HKD
Retailer 5HK$9,131 HKD
Retailer 15HK$9,836 HKD
Retailer 11HK$15,416 HKD
Retailer 14HK$16,968 HKD
Retailer 7HK$20,808 HKD
Retailer 9HK$24,139 HKD
Retailer 8HK$25,346 HKD

41 data points across 15 retailers

16 retailersHK$5,204 HKD to HK$25,346 HKD

A
Cheapest Retailer
-
HK$5,204 HKD
A
Retailer 2
-
HK$5,659 HKD
View
A
Retailer 3
-
HK$5,815 HKD
View
Final sale: no returns
A
Retailer 4
-
HK$6,035 HKD
View
Retailer 5
-
HK$6,035 HKD
View
Price last confirmed 22 days ago
A
Retailer 6
-
HK$7,140 HKD
View
A
Retailer 7
-
HK$7,406 HKD
View
A
Retailer 8
-
HK$8,433 HKD
View
B+
Retailer 9
-
HK$9,131 HKD
View
B+
Retailer 10
-
HK$9,836 HKD
View
B+
Retailer 11
-
HK$15,416 HKD
View
B+
Retailer 12
-
HK$16,968 HKD
View
B+
Retailer 13
-
HK$20,808 HKD
View
B
Retailer 14
-
HK$24,139 HKD
View
B
Retailer 15
-
HK$25,346 HKD
View
Most Expensive
Ting Diamond
10185574 · Nov 6
HK$71,929 HKD
View
Price under review
15 more retailers have this diamond
Prices start from HK$5,204 HKDSave up to HK$20,142 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
3.09ct Radiant
HK$5,204 HKD