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Cushion|Lab Grown|IGI

4.18ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG811635657

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG811635657

Diamond specifications and retailer prices

From HK$31,752 HKD
$4,047 USD
As of November 1, 2026
Save HK$166,352 HKD (84%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$198,104 HKD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.18ct lab-grown cushion diamond

This 4.18ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811635657 or 811635657. Listed at 10 retailers as of October 31, 2026, with prices from HK$31,752 to HK$198,104, a HK$166,352 spread on the same certified stone. Do Amore Diamonds lists it at HK$198,104. 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

4.18
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811635657
Dimensions9.22 × 9.20 × 6.22 mm
L/W Ratio1.00
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
9.22 mm9.20 mm4.18 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811635657
Side View
Table 58.0%Crown 37.3°Girdle: STK-THKPavilion 38.2°Culet: NoneDepth 67.6%

Caratlytics Score

How it works →
A+
Exceptional
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: Nov 1
Current: HK$198,104 HKD|Low: HK$31,752 HKD|High: HK$263,694 HKD|Avg: HK$110,326 HKD|-21.9%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 1, 2026
Retailer 6HK$31,752 HKD
Retailer 9HK$34,600 HKD
Retailer 8HK$35,996 HKD
Retailer 2HK$51,774 HKD
Retailer 5HK$63,194 HKD
Retailer 11HK$64,060 HKD
Retailer 10HK$79,403 HKD
Retailer 7HK$101,602 HKD
Retailer 4HK$105,948 HKD
Retailer 12HK$155,980 HKD
Do Amore DiamondsHK$198,104 HKD
Retailer 3HK$263,694 HKD

29 data points across 12 retailers

10 retailersHK$31,752 HKD to HK$198,104 HKD

A+
Cheapest Retailer
-
HK$31,752 HKD
$4,047 USD
A
Retailer 2
-
HK$34,600 HKD
$4,410 USD
View
A
Retailer 3
-
HK$35,996 HKD
$4,588 USD
View
A
Retailer 4
-
HK$51,774 HKD
$6,599 USD
View
A
Retailer 5
-
HK$63,194 HKD
€7,671 EUR
View
Retailer 6
-
HK$64,060 HKD
$8,165 USD
View
Price last confirmed 13 days ago
B+
Retailer 7
-
HK$79,403 HKD
£7,969 GBP
View
B+
Retailer 8
-
HK$101,602 HKD
$12,950 USD
View
B
Retailer 9
-
HK$155,980 HKD
$19,881 USD
View
Most Expensive
B
Do Amore Diamonds
27-C916D5FE2 · Oct 31
HK$198,104 HKD
$25,250 USD
View
9 more retailers have this diamond
Prices start from HK$31,752 HKDSave up to HK$166,352 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+
4.18ct Cushion
HK$31,752 HKD