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Radiant|Lab Grown|IGI

1.72ct F IF Radiant Lab Grown Diamond

GD • F/IF • IGI LG729503380

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

Certificate IGI LG729503380

Diamond specifications and retailer prices

From HK$2,322 HKD
As of October 30, 2026
Save HK$19,018 HKD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$21,341 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.72ct lab-grown radiant diamond

This 1.72ct lab-grown radiant sits in the one-and-a-half to two carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG729503380 or 729503380. Listed at 22 retailers as of October 30, 2026, with prices from HK$2,322 to HK$21,341, a HK$19,018 spread on the same certified stone. Brilliant Earth lists it at HK$21,341. 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

1.72
Carat
F
Colour
IF
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.2°
Pavilion angle37.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729503380
Dimensions8.52 × 5.81 × 3.93 mm
L/W Ratio1.47
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.52 mm5.81 mm1.72 ctF / IF
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729503380
Side View
Table 65.0%Crown 41.2°Girdle: MediumPavilion 37.2°Culet: NoneDepth 67.6%

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: Oct 30
Current: HK$21,341 HKD|Low: HK$2,228 HKD|High: HK$30,442 HKD|Avg: HK$7,736 HKD|-29.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 11
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Retailer 13
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Retailer 15
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Retailer 17
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Retailer 20
Retailer 21
October 31, 2026
Retailer 4HK$2,322 HKD
Retailer 14HK$2,605 HKD
Retailer 12HK$2,699 HKD
Retailer 5HK$2,879 HKD
Retailer 10HK$2,879 HKD
Retailer 18HK$4,119 HKD
Retailer 2HK$4,613 HKD
Retailer 7HK$4,723 HKD
Retailer 17HK$4,951 HKD
Retailer 9HK$4,982 HKD
Retailer 13HK$5,108 HKD
Retailer 16HK$6,700 HKD
Retailer 20HK$7,422 HKD
Retailer 6HK$9,266 HKD
Retailer 11HK$9,642 HKD
Retailer 8HK$9,941 HKD
Retailer 21HK$10,286 HKD
Retailer 15HK$11,612 HKD
Retailer 3HK$12,279 HKD
Retailer 19HK$20,360 HKD
Brilliant EarthHK$21,341 HKD

36 data points across 21 retailers

22 retailersHK$2,322 HKD to HK$21,341 HKD

A
Cheapest Retailer
-
HK$2,322 HKD
Retailer 2
-
HK$2,699 HKD
View
Price last confirmed 8 days ago
Retailer 3
-
HK$2,879 HKD
View
Price last confirmed 11 days ago
A
Retailer 4
-
HK$2,879 HKD
View
A
Retailer 5
-
HK$4,119 HKD
View
A
Retailer 6
-
HK$4,613 HKD
View
B+
Retailer 7
-
HK$4,723 HKD
View
Retailer 8
-
HK$4,951 HKD
View
Price last confirmed 8 days ago
B+
Retailer 9
-
HK$4,982 HKD
View
A
Retailer 10
-
HK$5,108 HKD
View
Retailer 11
-
HK$6,700 HKD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
HK$7,422 HKD
View
Retailer 13
-
HK$9,266 HKD
View
Price last confirmed 8 days ago
B
Retailer 14
-
HK$9,399 HKD
View
B
Retailer 15
-
HK$9,642 HKD
View
B+
Retailer 16
-
HK$9,941 HKD
View
B+
Retailer 17
-
HK$10,121 HKD
View
B+
Retailer 18
-
HK$10,286 HKD
View
Retailer 19
-
HK$11,612 HKD
View
Price last confirmed 7 days ago
B
Retailer 20
-
HK$12,279 HKD
View
Retailer 21
-
HK$20,360 HKD
View
Price last confirmed 18 days ago
Most Expensive
B
Brilliant Earth
21417112A · Oct 31
HK$21,341 HKD
$2,720 USD
View
21 more retailers have this diamond
Prices start from HK$2,322 HKDSave up to HK$19,018 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
1.72ct Radiant
HK$2,322 HKD