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Cushion|Lab Grown|IGI

3.17ct E IF Cushion Lab Grown Diamond

EX • E/IF • IGI LG741580359

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG741580359

Diamond specifications and retailer prices

From HK$18,568 HKD
£1,863 GBP
As of October 30, 2026
Save HK$27,730 HKD (60%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$46,298 HKD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 3.17ct lab-grown cushion diamond

This 3.17ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG741580359 or 741580359. Listed at 7 retailers as of October 30, 2026, with prices from HK$18,568 to HK$46,298, a HK$27,730 spread on the same certified stone. Taylor and Hart lists it at HK$46,298. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.17
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741580359
Dimensions9.88 × 7.45 × 5.00 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.88 mm7.45 mm3.17 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741580359
Side View
Table 59.0%Crown 33.9°Girdle: MED-STKPavilion 35.4°Culet: NoneDepth 67.1%

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$18,568 HKD|Low: HK$18,456 HKD|High: HK$46,298 HKD|Avg: HK$28,695 HKD|-6.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
October 30, 2026
Retailer 1HK$18,568 HKD
Retailer 4HK$18,814 HKD
Retailer 2HK$21,427 HKD
Retailer 5HK$26,212 HKD
Retailer 3HK$37,425 HKD
Retailer 6HK$45,034 HKD
Taylor and HartHK$46,298 HKD

42 data points across 7 retailers

7 retailersHK$18,568 HKD to HK$46,298 HKD

A
Cheapest Retailer
-
HK$18,568 HKD
£1,863 GBP
A
Retailer 2
-
HK$18,814 HKD
$2,398 USD
View
A
Retailer 3
-
HK$21,427 HKD
€2,601 EUR
View
A
Retailer 4
-
HK$26,212 HKD
$3,341 USD
View
B+
Retailer 5
-
HK$37,425 HKD
£3,756 GBP
View
Retailer 6
-
HK$45,034 HKD
$5,740 USD
View
Price last confirmed 9 days ago
Most Expensive
B+
Taylor and Hart
ONUH8LS · Oct 30
HK$46,298 HKD
$5,901 USD
View
6 more retailers have this diamond
Prices start from HK$18,568 HKDSave up to HK$27,730 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
3.17ct Cushion
HK$18,568 HKD