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Radiant|Lab Grown|IGI

1.55ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG512214411

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

Certificate IGI LG512214411

Diamond specifications and retailer prices

From HK$2,069 HKD
As of November 6, 2026
Save HK$15,643 HKD (88%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$17,713 HKD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 1.55ct lab-grown radiant diamond

This 1.55ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512214411 or 512214411. Listed at 15 retailers as of November 6, 2026, with prices from HK$2,069 to HK$17,713, a HK$15,643 spread on the same certified stone. Do Amore Diamonds lists it at HK$17,713. 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

1.55
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.2°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512214411
Dimensions8.33 × 5.78 × 3.77 mm
L/W Ratio1.44
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
8.33 mm5.78 mm1.55 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512214411
Side View
Table 61.5%Crown 42.2°Girdle: Slightly ThickPavilion 34.6°Culet: NoneDepth 65.2%

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: Nov 6
Current: HK$4,820 HKD|Low: HK$2,069 HKD|High: HK$13,167 HKD|Avg: HK$5,973 HKD|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 7, 2026
Retailer 8HK$2,069 HKD
Retailer 9HK$3,010 HKD
Retailer 6HK$3,088 HKD
Retailer 1HK$4,820 HKD
Retailer 3HK$5,643 HKD
Retailer 7HK$7,571 HKD
Retailer 2HK$10,087 HKD
Retailer 4HK$10,792 HKD
Retailer 5HK$13,167 HKD

42 data points across 9 retailers

15 retailersHK$2,069 HKD to HK$17,713 HKD

Retailer 1
-
HK$1,771 HKD
Price last confirmed 36 days ago
A
Retailer 2
-
HK$2,069 HKD
View
Final sale: no returns
Retailer 3
-
HK$2,140 HKD
View
Price last confirmed 41 days ago
Retailer 4
-
HK$2,257 HKD
View
Price last confirmed 41 days ago
Retailer 5
-
HK$2,289 HKD
View
Price last confirmed 35 days ago
A
Retailer 6
-
HK$3,010 HKD
View
B+
Retailer 7
-
HK$3,088 HKD
View
A
Retailer 8
-
HK$4,820 HKD
View
B+
Retailer 9
-
HK$5,643 HKD
View
B
Retailer 10
-
HK$7,571 HKD
View
Retailer 11
-
HK$8,120 HKD
View
Price last confirmed 38 days ago
B
Retailer 12
-
HK$10,087 HKD
View
B
Retailer 13
-
HK$10,792 HKD
View
B
Retailer 14
-
HK$13,167 HKD
View
Most Expensive
B
Do Amore Diamonds
27-D56BA13EA · Nov 6
HK$17,713 HKD
$2,260 USD
View
14 more retailers have this diamond
Prices start from HK$2,069 HKDSave up to HK$15,643 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
1.55ct Radiant
HK$2,069 HKD