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Cushion|Lab Grown|IGI

4.26ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG846658009

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG846658009

Diamond specifications and retailer prices

From HK$33,635 HKD
£3,376 GBP
As of October 30, 2026
Save HK$174,857 HKD (84%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$208,492 HKD at With Clarity · As of October 31, 2026
View at With Clarity

About this 4.26ct lab-grown cushion diamond

This 4.26ct 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 LG846658009 or 846658009. Listed at 9 retailers as of October 30, 2026, with prices from HK$33,635 to HK$208,492, a HK$174,857 spread on the same certified stone. With Clarity lists it at HK$208,492. 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

4.26
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.8°
Pavilion angle35.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846658009
Dimensions10.34 × 8.63 × 5.83 mm
L/W Ratio1.20
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
10.34 mm8.63 mm4.26 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG846658009
Side View
Table 60.0%Crown 36.8°Girdle: STK-THKPavilion 35.3°Culet: NoneDepth 67.6%

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 30
Current: HK$72,972 HKD|Low: HK$31,522 HKD|High: HK$231,660 HKD|Avg: HK$82,243 HKD|-2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
With Clarity
October 31, 2026
Retailer 6HK$33,635 HKD
Retailer 2HK$40,601 HKD
Retailer 3HK$51,554 HKD
Retailer 8HK$59,871 HKD
Retailer 1HK$72,972 HKD
Retailer 4HK$73,671 HKD
Retailer 7HK$78,347 HKD
Retailer 5HK$118,078 HKD
With ClarityHK$208,492 HKD

7 data points across 9 retailers

9 retailersHK$33,635 HKD to HK$208,492 HKD

A
Cheapest Retailer
-
HK$33,635 HKD
£3,376 GBP
A
Retailer 2
-
HK$40,601 HKD
$5,175 USD
View
A
Retailer 3
-
HK$51,554 HKD
$6,571 USD
View
A
Retailer 4
-
HK$59,871 HKD
$7,631 USD
View
A
Retailer 5
-
HK$72,972 HKD
€8,858 EUR
View
B+
Retailer 6
-
HK$73,671 HKD
$9,390 USD
View
B+
Retailer 7
-
HK$78,347 HKD
£7,863 GBP
View
B+
Retailer 8
-
HK$118,078 HKD
$15,050 USD
View
Most Expensive
B
With Clarity
846658009 · Oct 31
HK$208,492 HKD
$26,574 USD
View
8 more retailers have this diamond
Prices start from HK$33,635 HKDSave up to HK$174,857 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
4.26ct Cushion
HK$33,635 HKD