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Cushion|Lab Grown|IGI

5.31ct D FL Cushion Lab Grown Diamond

ID • D/FL • IGI LG780662902

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG780662902

Diamond specifications and retailer prices

From HK$60,498 HKD
$7,711 USD
As of November 1, 2026
Save HK$180,485 HKD (75%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$240,983 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 5.31ct lab-grown cushion diamond

This 5.31ct 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 LG780662902 or 780662902. Listed at 14 retailers as of October 31, 2026, with prices from HK$60,498 to HK$240,983, a HK$180,485 spread on the same certified stone. Taylor and Hart lists it at HK$240,983. 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

5.31
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG780662902
Dimensions11.84 × 9.29 × 6.05 mm
L/W Ratio1.27
Girdle conditionFaceted
Culet sizePointed
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
11.84 mm9.29 mm5.31 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG780662902
Side View
Table 61.0%Crown 36.4°Girdle: MED-THKPavilion 35.8°Culet: NoneDepth 65.1%

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$90,316 HKD|Low: HK$60,498 HKD|High: HK$251,131 HKD|Avg: HK$136,332 HKD|-17.3%
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 9HK$60,498 HKD
Retailer 8HK$64,672 HKD
Retailer 4HK$80,207 HKD
Retailer 3HK$81,517 HKD
Retailer 13HK$82,148 HKD
Retailer 1HK$90,316 HKD
Retailer 10HK$124,111 HKD
Retailer 6HK$125,423 HKD
Retailer 11HK$131,102 HKD
Retailer 2HK$139,965 HKD
Retailer 12HK$152,167 HKD
Retailer 7HK$186,445 HKD
Retailer 5HK$210,803 HKD
Taylor and HartHK$240,983 HKD

40 data points across 14 retailers

14 retailersHK$60,498 HKD to HK$240,983 HKD

A
Cheapest Retailer
-
HK$60,498 HKD
$7,711 USD
A
Retailer 2
-
HK$64,672 HKD
$8,243 USD
View
A
Retailer 3
-
HK$80,207 HKD
$10,223 USD
View
Retailer 4
-
HK$81,517 HKD
$10,390 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
HK$82,148 HKD
View
A
Retailer 6
-
HK$90,316 HKD
£9,064 GBP
View
A
Retailer 7
-
HK$124,111 HKD
$15,819 USD
View
A
Retailer 8
-
HK$125,423 HKD
€15,225 EUR
View
B+
Retailer 9
-
HK$131,102 HKD
$16,710 USD
View
B+
Retailer 10
-
HK$139,965 HKD
£14,047 GBP
View
B+
Retailer 11
-
HK$152,167 HKD
ZAR 313,328 ZAR
View
B+
Retailer 12
-
HK$186,445 HKD
$23,764 USD
View
B
Retailer 13
-
HK$210,803 HKD
$26,869 USD
View
Most Expensive
B
Taylor and Hart
J1NOSVH · Oct 31
HK$240,983 HKD
$30,715 USD
View
13 more retailers have this diamond
Prices start from HK$60,498 HKDSave up to HK$180,485 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
5.31ct Cushion
HK$60,498 HKD