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Radiant|Lab Grown|IGI

1.73ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG821651606

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

Certificate IGI LG821651606

Diamond specifications and retailer prices

From HK$3,311 HKD
$422 USD
As of October 30, 2026
Save HK$12,887 HKD (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$16,198 HKD at Michael Trio · As of October 31, 2026
View at Michael Trio

About this 1.73ct lab-grown radiant diamond

This 1.73ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG821651606 or 821651606. Listed at 15 retailers as of October 30, 2026, with prices from HK$3,311 to HK$16,198, a HK$12,887 spread on the same certified stone. Michael Trio lists it at HK$16,198. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42°
Pavilion angle31.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821651606
Dimensions9.17 × 5.71 × 3.73 mm
L/W Ratio1.61
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.17 mm5.71 mm1.73 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821651606
Side View
Table 67.0%Crown 42°Girdle: Slightly ThickPavilion 31.8°Culet: NoneDepth 65.3%

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$16,198 HKD|Low: HK$3,311 HKD|High: HK$16,471 HKD|Avg: HK$8,161 HKD|-1.7%
Michael Trio
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
October 31, 2026
Retailer 5HK$3,311 HKD
Retailer 12HK$3,873 HKD
Retailer 14HK$4,825 HKD
Retailer 9HK$4,904 HKD
Retailer 7HK$5,618 HKD
Retailer 6HK$6,296 HKD
Retailer 8HK$6,601 HKD
Retailer 3HK$8,501 HKD
Retailer 10HK$10,246 HKD
Retailer 11HK$10,301 HKD
Retailer 13HK$12,043 HKD
Retailer 2HK$13,667 HKD
Retailer 4HK$14,398 HKD
Michael TrioHK$16,198 HKD

20 data points across 14 retailers

15 retailersHK$3,311 HKD to HK$16,198 HKD

A
Cheapest Retailer
-
HK$3,311 HKD
$422 USD
Final sale: no returns
A
Retailer 2
-
HK$3,873 HKD
£389 GBP
View
A
Retailer 3
-
HK$4,825 HKD
$615 USD
View
A
Retailer 4
-
HK$4,904 HKD
$625 USD
View
A
Retailer 5
-
HK$5,618 HKD
€682 EUR
View
A
Retailer 6
-
HK$6,296 HKD
ZAR 12,965 ZAR
View
A
Retailer 7
-
HK$6,601 HKD
£662 GBP
View
A
Retailer 8
-
HK$8,501 HKD
A$1,667 AUD
View
B+
Retailer 9
-
HK$10,246 HKD
$1,306 USD
View
B+
Retailer 10
-
HK$10,301 HKD
$1,313 USD
View
B+
Retailer 11
-
HK$12,043 HKD
$1,535 USD
View
B+
Retailer 12
-
HK$13,667 HKD
$1,742 USD
View
B+
Retailer 13
-
HK$14,398 HKD
£1,445 GBP
View
Retailer 14
-
HK$15,258 HKD
A$2,992 AUD
View
Price last confirmed 23 days ago
Most Expensive
B+
Michael Trio
2037643848 · Oct 31
HK$16,198 HKD
SGD 2,790 SGD
View
14 more retailers have this diamond
Prices start from HK$3,311 HKDSave up to HK$12,887 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
1.73ct Radiant
HK$3,311 HKD