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Cushion|Lab Grown|IGI

5.18ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846662161

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846662161

Diamond specifications and retailer prices

From HK$54,473 HKD
$6,943 USD
As of October 30, 2026
Save HK$343,061 HKD (86%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$397,534 HKD at With Clarity · As of October 31, 2026
View at With Clarity

About this 5.18ct lab-grown cushion diamond

This 5.18ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG846662161 or 846662161. Listed at 10 retailers as of October 30, 2026, with prices from HK$54,473 to HK$397,534, a HK$343,061 spread on the same certified stone. With Clarity lists it at HK$397,534. 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

5.18
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle36.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846662161
Dimensions12.69 × 8.97 × 5.95 mm
L/W Ratio1.41
Girdle conditionFaceted
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
12.69 mm8.97 mm5.18 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846662161
Side View
Table 63.0%Crown 34.1°Girdle: MED-THKPavilion 36.4°Culet: NoneDepth 66.3%

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$132,879 HKD|Low: HK$54,473 HKD|High: HK$415,493 HKD|Avg: HK$135,376 HKD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
With Clarity
October 31, 2026
Retailer 4HK$54,473 HKD
Retailer 2HK$61,314 HKD
Retailer 7HK$63,568 HKD
Retailer 9HK$73,883 HKD
Retailer 3HK$83,823 HKD
Retailer 8HK$129,891 HKD
Retailer 1HK$132,879 HKD
Retailer 5HK$133,597 HKD
Retailer 6HK$137,300 HKD
With ClarityHK$397,534 HKD

10 data points across 10 retailers

10 retailersHK$54,473 HKD to HK$397,534 HKD

A
Cheapest Retailer
-
HK$54,473 HKD
$6,943 USD
A
Retailer 2
-
HK$61,314 HKD
$7,815 USD
View
A
Retailer 3
-
HK$63,568 HKD
£6,380 GBP
View
A
Retailer 4
-
HK$73,883 HKD
$9,417 USD
View
A
Retailer 5
-
HK$83,823 HKD
$10,684 USD
View
B+
Retailer 6
-
HK$129,891 HKD
£13,036 GBP
View
B+
Retailer 7
-
HK$132,879 HKD
€16,130 EUR
View
B+
Retailer 8
-
HK$133,597 HKD
$17,028 USD
View
B+
Retailer 9
-
HK$137,300 HKD
$17,500 USD
View
Most Expensive
B
With Clarity
846662161 · Oct 31
HK$397,534 HKD
$50,669 USD
View
9 more retailers have this diamond
Prices start from HK$54,473 HKDSave up to HK$343,061 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
5.18ct Cushion
HK$54,473 HKD