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Radiant|Lab Grown|IGI

1.77ct F SI1 Radiant Lab Grown Diamond

GD • F/SI1 • IGI LG680542042

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

Certificate IGI LG680542042

Diamond specifications and retailer prices

From HK$4,425 HKD
$564 USD
As of November 2, 2026
Save HK$2,130 HKD (32%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$6,555 HKD at Diamond Quarter · As of November 2, 2026
View at Diamond Quarter

About this 1.77ct lab-grown radiant diamond

This 1.77ct 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 standard cut grade and certified by IGI LG680542042 or 680542042. Listed at 2 retailers as of November 2, 2026, with prices from HK$4,425 to HK$6,555, a HK$2,130 spread on the same certified stone. Diamond Quarter lists it at HK$6,555. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.77
Carat
F
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.2°
Pavilion angle34°
OriginLab Grown
Grading LabIGI
CertificateIGI LG680542042
Dimensions8.85 × 5.95 × 3.87 mm
L/W Ratio1.49
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.85 mm5.95 mm1.77 ctF / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG680542042
Side View
Table 63.0%Crown 38.2°Girdle: MediumPavilion 34°Culet: NoneDepth 65.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$4,425 HKD|Low: HK$4,323 HKD|High: HK$6,512 HKD|Avg: HK$5,063 HKD|-32.0%
September 23, 2026
Retailer 1HK$4,425 HKD

4 data points across 1 retailer

2 retailersHK$4,425 HKD to HK$6,555 HKD

B+
Cheapest Retailer
-
HK$4,425 HKD
$564 USD
Most Expensive
B
Diamond Quarter
1.77SI1FLG426BDAN · Nov 2
HK$6,555 HKD
£658 GBP
View
1 more retailer has this diamond
Prices start from HK$4,425 HKDSave up to HK$2,130 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.

B+
1.77ct Radiant
HK$4,425 HKD