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Cushion|Lab Grown|IGI

5.59ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG799630951

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG799630951

Diamond specifications and retailer prices

From HK$78,747 HKD
$10,037 USD
As of November 1, 2026
Save HK$201,226 HKD (72%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$279,973 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 5.59ct lab-grown cushion diamond

This 5.59ct 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 LG799630951 or 799630951. Listed at 13 retailers as of October 31, 2026, with prices from HK$78,747 to HK$279,973, a HK$201,226 spread on the same certified stone. Taylor and Hart lists it at HK$279,973. 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

5.59
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle28.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799630951
Dimensions11.86 × 9.11 × 6.00 mm
L/W Ratio1.30
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
11.86 mm9.11 mm5.59 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799630951
Side View
Table 59.0%Crown 35.2°Girdle: MED-THKPavilion 28.5°Culet: NoneDepth 65.9%

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: Nov 1
Current: HK$144,748 HKD|Low: HK$65,177 HKD|High: HK$279,973 HKD|Avg: HK$139,792 HKD|-3.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Taylor and Hart
November 1, 2026
Retailer 5HK$65,177 HKD
Retailer 12HK$78,747 HKD
Retailer 13HK$86,993 HKD
Retailer 2HK$89,049 HKD
Retailer 8HK$90,108 HKD
Retailer 9HK$96,188 HKD
Retailer 6HK$107,138 HKD
Retailer 4HK$129,134 HKD
Retailer 1HK$144,748 HKD
Retailer 11HK$167,051 HKD
Retailer 7HK$183,074 HKD
Retailer 10HK$230,734 HKD
Retailer 3HK$251,029 HKD
Taylor and HartHK$279,973 HKD

42 data points across 14 retailers

13 retailersHK$78,747 HKD to HK$279,973 HKD

A
Cheapest Retailer
-
HK$78,747 HKD
$10,037 USD
A
Retailer 2
-
HK$86,993 HKD
$11,088 USD
View
Final sale: no returns
A
Retailer 3
-
HK$89,049 HKD
$11,350 USD
View
Retailer 4
-
HK$90,108 HKD
$11,485 USD
View
Price last confirmed 16 days ago
A
Retailer 5
-
HK$96,188 HKD
$12,260 USD
View
A
Retailer 6
-
HK$107,138 HKD
£10,752 GBP
View
A
Retailer 7
-
HK$129,134 HKD
£12,960 GBP
View
B+
Retailer 8
-
HK$144,748 HKD
£14,527 GBP
View
B+
Retailer 9
-
HK$167,051 HKD
$21,292 USD
View
B+
Retailer 10
-
HK$183,074 HKD
ZAR 376,968 ZAR
View
B
Retailer 11
-
HK$230,734 HKD
$29,409 USD
View
B
Retailer 12
-
HK$251,029 HKD
$31,996 USD
View
Most Expensive
B
Taylor and Hart
4F4A1BD · Oct 31
HK$279,973 HKD
$35,685 USD
View
12 more retailers have this diamond
Prices start from HK$78,747 HKDSave up to HK$201,226 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
5.59ct Cushion
HK$78,747 HKD