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Cushion|Lab Grown|IGI

0.51ct D IF Cushion Lab Grown Diamond

VG • D/IF • IGI LG778616981

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

Certificate IGI LG778616981

Diamond specifications and retailer prices

From HK$1,969 HKD
As of November 5, 2026
Save HK$14,428 HKD (88%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$16,398 HKD at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 0.51ct lab-grown cushion diamond

This 0.51ct lab-grown cushion sits in the half to three-quarter carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG778616981 or 778616981. Listed at 18 retailers as of November 4, 2026, with prices from HK$1,969 to HK$16,398, a HK$14,428 spread on the same certified stone. Do Amore Diamonds lists it at HK$16,398. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
D
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778616981
Dimensions4.51 × 4.46 × 3.10 mm
L/W Ratio1.01
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
4.51 mm4.46 mm0.51 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778616981
Side View
Table 62.0%Crown 37.4°Girdle: MED-THKPavilion 39.8°Culet: NoneDepth 69.5%

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 5
Current: HK$16,398 HKD|Low: HK$1,883 HKD|High: HK$16,398 HKD|Avg: HK$6,278 HKD
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
Retailer 13
Retailer 14
Retailer 15
Retailer 16
November 4, 2026
Retailer 16HK$1,969 HKD
Retailer 8HK$2,213 HKD
Retailer 5HK$2,354 HKD
Retailer 7HK$2,919 HKD
Retailer 14HK$3,374 HKD
Retailer 11HK$4,378 HKD
Retailer 3HK$4,449 HKD
Retailer 13HK$4,574 HKD
Retailer 15HK$5,100 HKD
Retailer 9HK$6,167 HKD
Retailer 4HK$6,889 HKD
Retailer 10HK$9,078 HKD
Retailer 6HK$9,438 HKD
Retailer 12HK$9,674 HKD
Retailer 2HK$9,964 HKD
Do Amore DiamondsHK$16,398 HKD

37 data points across 16 retailers

18 retailersHK$1,969 HKD to HK$16,398 HKD

Retailer 1
-
HK$1,922 HKD
Price last confirmed 31 days ago
A
Retailer 2
-
HK$1,969 HKD
View
Final sale: no returns
A
Retailer 3
-
HK$2,213 HKD
View
Retailer 4
-
HK$2,354 HKD
View
Price last confirmed 15 days ago
A
Retailer 5
-
HK$2,919 HKD
View
A
Retailer 6
-
HK$3,060 HKD
View
A
Retailer 7
-
HK$3,374 HKD
View
B+
Retailer 8
-
HK$4,378 HKD
View
B+
Retailer 9
-
HK$4,449 HKD
View
B+
Retailer 10
-
HK$4,574 HKD
View
Retailer 11
-
HK$5,100 HKD
View
Price last confirmed 8 days ago
B+
Retailer 12
-
HK$6,167 HKD
View
B
Retailer 13
-
HK$6,889 HKD
View
B
Retailer 14
-
HK$9,078 HKD
View
Retailer 15
-
HK$9,438 HKD
View
Price last confirmed 17 days ago
B
Retailer 16
-
HK$9,674 HKD
View
B
Retailer 17
-
HK$9,964 HKD
View
Most Expensive
B
Do Amore Diamonds
32-LG778616981 · Nov 4
HK$16,398 HKD
$2,090 USD
View
17 more retailers have this diamond
Prices start from HK$1,969 HKDSave up to HK$14,428 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
0.51ct Cushion
HK$1,969 HKD