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Cushion|Lab Grown|IGI

5.51ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG804659325

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG804659325

Diamond specifications and retailer prices

From HK$62,656 HKD
$7,986 USD
As of November 1, 2026
Save HK$184,135 HKD (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$246,790 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 5.51ct lab-grown cushion diamond

This 5.51ct 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 LG804659325 or 804659325. Listed at 12 retailers as of October 31, 2026, with prices from HK$62,656 to HK$246,790, a HK$184,135 spread on the same certified stone. Taylor and Hart lists it at HK$246,790. 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

5.51
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.8°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804659325
Dimensions11.71 × 9.68 × 6.22 mm
L/W Ratio1.21
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
11.71 mm9.68 mm5.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804659325
Side View
Table 61.0%Crown 37.8°Girdle: MED-STKPavilion 36.5°Culet: NoneDepth 64.3%

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: Nov 1
Current: HK$141,360 HKD|Low: HK$62,656 HKD|High: HK$261,540 HKD|Avg: HK$142,637 HKD|-4.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Taylor and Hart
November 1, 2026
Retailer 9HK$62,656 HKD
Retailer 4HK$81,438 HKD
Retailer 2HK$84,184 HKD
Retailer 11HK$85,160 HKD
Retailer 5HK$93,704 HKD
Retailer 8HK$121,491 HKD
Retailer 6HK$130,144 HKD
Retailer 10HK$136,044 HKD
Retailer 1HK$141,360 HKD
Retailer 7HK$193,467 HKD
Retailer 3HK$218,743 HKD
Taylor and HartHK$246,790 HKD

39 data points across 12 retailers

12 retailersHK$62,656 HKD to HK$246,790 HKD

A
Cheapest Retailer
-
HK$62,656 HKD
$7,986 USD
A
Retailer 2
-
HK$81,438 HKD
$10,380 USD
View
Retailer 3
-
HK$84,184 HKD
$10,730 USD
View
Price last confirmed 13 days ago
A
Retailer 4
-
HK$85,160 HKD
View
A
Retailer 5
-
HK$93,704 HKD
£9,404 GBP
View
A
Retailer 6
-
HK$121,491 HKD
$15,485 USD
View
A
Retailer 7
-
HK$130,144 HKD
€15,798 EUR
View
B+
Retailer 8
-
HK$136,044 HKD
$17,340 USD
View
B+
Retailer 9
-
HK$141,360 HKD
£14,187 GBP
View
B+
Retailer 10
-
HK$193,467 HKD
$24,659 USD
View
B
Retailer 11
-
HK$218,743 HKD
$27,881 USD
View
Most Expensive
B
Taylor and Hart
YXBMR75 · Oct 31
HK$246,790 HKD
$31,456 USD
View
11 more retailers have this diamond
Prices start from HK$62,656 HKDSave up to HK$184,135 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
5.51ct Cushion
HK$62,656 HKD