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Cushion|Lab Grown|IGI

4.78ct F VS1 Cushion Lab Grown Diamond

EX • F/VS1 • IGI LG849663289

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG849663289

Diamond specifications and retailer prices

From HK$4,739 HKD
£476 GBP
As of November 2, 2026
Save HK$23,899 HKD (83%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$28,638 HKD at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 4.78ct lab-grown cushion diamond

This 4.78ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG849663289 or 849663289. Listed at 7 retailers as of October 28, 2026, with prices from HK$4,739 to HK$28,638, a HK$23,899 spread on the same certified stone. Rare Carat lists it at HK$28,638. 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

4.78
Carat
F
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG849663289
Dimensions12.60 × 8.51 × 5.64 mm
L/W Ratio1.48
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.60 mm8.51 mm4.78 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG849663289
Side View
Table 64.0%Crown 34.9°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 66.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$4,739 HKD|Low: HK$4,739 HKD|High: HK$26,065 HKD|Avg: HK$16,459 HKD
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 2, 2026
Retailer 1HK$4,739 HKD
Retailer 3HK$8,626 HKD
Retailer 5HK$8,952 HKD
Retailer 4HK$17,199 HKD
Retailer 2HK$19,105 HKD
Retailer 6HK$26,065 HKD

5 data points across 6 retailers

7 retailersHK$4,739 HKD to HK$28,638 HKD

A
Cheapest Retailer
-
HK$4,739 HKD
£476 GBP
A
Retailer 2
-
HK$8,626 HKD
€1,047 EUR
View
A
Retailer 3
-
HK$8,952 HKD
$1,141 USD
View
B+
Retailer 4
-
HK$17,199 HKD
$2,192 USD
View
B+
Retailer 5
-
HK$19,105 HKD
$2,435 USD
View
B
Retailer 6
-
HK$26,065 HKD
$3,322 USD
View
Most Expensive
B
Rare Carat
LGLCU40-184851 · Oct 28
HK$28,638 HKD
$3,650 USD
View
6 more retailers have this diamond
Prices start from HK$4,739 HKDSave up to HK$23,899 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
4.78ct Cushion
HK$4,739 HKD