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Radiant|Lab Grown|IGI

1.80ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG577399386

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

Certificate IGI LG577399386

Diamond specifications and retailer prices

From HK$3,225 HKD
$411 USD
As of November 1, 2026
Save HK$7,524 HKD (70%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$10,749 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.8ct lab-grown radiant diamond

This 1.8ct 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 LG577399386 or 577399386. Listed at 11 retailers as of November 1, 2026, with prices from HK$3,225 to HK$10,749, a HK$7,524 spread on the same certified stone. Brilliant Earth lists it at HK$10,749. 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

1.80
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle43.2°
Pavilion angle35.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG577399386
Dimensions8.76 × 5.92 × 4.04 mm
L/W Ratio1.48
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
8.76 mm5.92 mm1.80 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG577399386
Side View
Table 66.0%Crown 43.2°Girdle: MediumPavilion 35.1°Culet: NoneDepth 68.2%

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 1
Current: HK$10,749 HKD|Low: HK$1,656 HKD|High: HK$11,220 HKD|Avg: HK$5,082 HKD|-4.2%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 3HK$1,656 HKD
Retailer 11HK$1,836 HKD
Retailer 10HK$3,225 HKD
Retailer 5HK$3,287 HKD
Retailer 2HK$3,308 HKD
Retailer 9HK$4,543 HKD
Retailer 8HK$4,857 HKD
Retailer 6HK$5,924 HKD
Retailer 4HK$8,589 HKD
Retailer 7HK$8,591 HKD
Brilliant EarthHK$10,749 HKD

38 data points across 11 retailers

11 retailersHK$3,225 HKD to HK$10,749 HKD

Retailer 1
-
HK$1,718 HKD
$219 USD
Price last confirmed 36 days ago
Retailer 2
-
HK$1,812 HKD
$231 USD
View
Price last confirmed 36 days ago
B+
Retailer 3
-
HK$3,225 HKD
$411 USD
View
A
Retailer 4
-
HK$3,287 HKD
€399 EUR
View
A
Retailer 5
-
HK$3,308 HKD
£332 GBP
View
A
Retailer 6
-
HK$4,543 HKD
$579 USD
View
A
Retailer 7
-
HK$4,857 HKD
$619 USD
View
B+
Retailer 8
-
HK$5,924 HKD
$755 USD
View
B+
Retailer 9
-
HK$8,589 HKD
£862 GBP
View
B
Retailer 10
-
HK$8,591 HKD
$1,095 USD
View
Most Expensive
B
Brilliant Earth
7624068A · Nov 2
HK$10,749 HKD
$1,370 USD
View
10 more retailers have this diamond
Prices start from HK$3,225 HKDSave up to HK$7,524 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
1.80ct Radiant
HK$3,225 HKD