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Cushion|Lab Grown|IGI

1.73ct E IF Cushion Lab Grown Diamond

ID • E/IF • IGI LG598342461

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG598342461

Diamond specifications and retailer prices

From HK$4,331 HKD
$552 USD
As of October 28, 2026
Save HK$24,857 HKD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$29,189 HKD at Brilliant Earth · As of October 28, 2026
View at Brilliant Earth

About this 1.73ct lab-grown cushion diamond

This 1.73ct lab-grown cushion sits in the one-and-a-half to two carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG598342461 or 598342461. Listed at 15 retailers as of October 28, 2026, with prices from HK$4,331 to HK$29,189, a HK$24,857 spread on the same certified stone. Brilliant Earth lists it at HK$29,189. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG598342461
Dimensions7.87 × 6.45 × 4.49 mm
L/W Ratio1.22
Girdle conditionFaceted
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
7.87 mm6.45 mm1.73 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG598342461
Side View
Table 61.0%Crown 33.4°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 69.6%

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 28
Current: HK$29,189 HKD|Low: HK$4,331 HKD|High: HK$30,052 HKD|Avg: HK$10,840 HKD|-2.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 29, 2026
Retailer 3HK$4,331 HKD
Retailer 12HK$4,802 HKD
Retailer 8HK$5,139 HKD
Retailer 11HK$6,434 HKD
Retailer 2HK$7,958 HKD
Retailer 5HK$8,090 HKD
Retailer 6HK$8,249 HKD
Retailer 4HK$10,695 HKD
Retailer 10HK$10,859 HKD
Retailer 9HK$11,261 HKD
Retailer 7HK$20,069 HKD
Brilliant EarthHK$29,189 HKD

42 data points across 12 retailers

15 retailersHK$4,331 HKD to HK$29,189 HKD

A
Cheapest Retailer
-
HK$4,331 HKD
$552 USD
Final sale: no returns
A
Retailer 2
-
HK$4,802 HKD
$612 USD
View
Price last confirmed 13 days ago
A
Retailer 3
-
HK$5,139 HKD
$655 USD
View
A
Retailer 4
-
HK$6,434 HKD
$820 USD
View
A
Retailer 5
-
HK$7,958 HKD
£799 GBP
View
A
Retailer 6
-
HK$8,090 HKD
€982 EUR
View
A
Retailer 7
-
HK$8,249 HKD
ZAR 16,985 ZAR
View
A
Retailer 8
-
HK$10,695 HKD
$1,363 USD
View
A
Retailer 9
-
HK$10,859 HKD
$1,384 USD
View
A
Retailer 10
-
HK$11,261 HKD
A$2,208 AUD
View
Price last confirmed 9 days ago
B+
Retailer 11
-
HK$15,643 HKD
$1,994 USD
View
B+
Retailer 12
-
HK$16,711 HKD
$2,130 USD
View
B+
Retailer 13
-
HK$20,069 HKD
£2,014 GBP
View
B
Retailer 14
-
HK$26,050 HKD
$3,320 USD
View
Price last confirmed 21 days ago
Most Expensive
B
Brilliant Earth
21311625A · Oct 28
HK$29,189 HKD
$3,720 USD
View
14 more retailers have this diamond
Prices start from HK$4,331 HKDSave up to HK$24,857 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 Cushion
HK$4,331 HKD