Cushion|Lab Grown|IGI

4.21ct F VVS1 Cushion Lab Grown Diamond

EX • F/VVS1 • IGI LG811655166

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG811655166

Diamond specifications and retailer prices

From HK$10,129 HKD

$1,291 USD

As of October 29, 2026

Save HK$61,757 HKD (86%) vs most expensive(unlock to see where)

24 retailers carry this diamond

Most expensive: HK$71,886 HKD at Yadav Diamonds · As of October 29, 2026

View at Yadav Diamonds

About this 4.21ct lab-grown cushion diamond

This 4.21ct lab-grown cushion sits in the three to five carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG811655166 or 811655166. Listed at 24 retailers as of October 29, 2026, with prices from HK$10,129 to HK$71,886, a HK$61,757 spread on the same certified stone. Yadav Diamonds lists it at HK$71,886. 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

4.21

Carat

Colour

VVS1

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.3°

Pavilion angle38.7°

OriginLab Grown

Grading LabIGI

CertificateIGI LG811655166

Dimensions11.48 × 8.50 × 5.56 mm

L/W Ratio1.35

Girdle conditionFaceted

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG811655166

Side View

Caratlytics Score

How it works →

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: Oct 29

Current: HK$22,146 HKD|Low: HK$8,858 HKD|High: HK$71,886 HKD|Avg: HK$27,616 HKD|+4.5%

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

Retailer 14

Retailer 15

Retailer 16

Retailer 17

Retailer 18

Retailer 19

Retailer 20

Retailer 21

Retailer 22

Yadav Diamonds

October 29, 2026

Retailer 15HK$9,282 HKD

Retailer 4HK$9,423 HKD

Retailer 7HK$10,129 HKD

Retailer 22HK$10,357 HKD

Retailer 8HK$14,766 HKD

Retailer 12HK$14,995 HKD

Retailer 18HK$15,669 HKD

Retailer 9HK$16,422 HKD

Retailer 17HK$17,183 HKD

Retailer 1HK$22,146 HKD

Retailer 21HK$22,272 HKD

Retailer 6HK$25,289 HKD

Retailer 2HK$26,068 HKD

Retailer 5HK$27,540 HKD

Retailer 11HK$28,594 HKD

Retailer 14HK$28,698 HKD

Retailer 16HK$30,850 HKD

Retailer 20HK$33,471 HKD

Retailer 19HK$36,663 HKD

Retailer 3HK$44,197 HKD

Retailer 13HK$62,450 HKD

Retailer 10HK$63,789 HKD

Yadav DiamondsHK$71,886 HKD

26 data points across 23 retailers

24 retailersHK$10,129 HKD to HK$71,886 HKD

Retailer 1

HK$9,423 HKD

$1,201 USD

Price last confirmed 16 days ago

Retailer 2

HK$10,129 HKD

$1,291 USD

View

Retailer 3

HK$10,357 HKD

$1,320 USD

View

Price last confirmed 5 days ago

Retailer 4

HK$14,766 HKD

$1,882 USD

View

Retailer 5

HK$14,995 HKD

£1,505 GBP

View

Retailer 6

HK$15,669 HKD

€1,902 EUR

View

Retailer 7

HK$16,422 HKD

$2,093 USD

View

Price last confirmed 7 days ago

Retailer 8

HK$17,183 HKD

$2,190 USD

View

B+

Retailer 9

HK$22,146 HKD

ZAR 45,598 ZAR

View

Retailer 10

HK$22,272 HKD

A$4,367 AUD

View

Price last confirmed 12 days ago

B+

Retailer 11

HK$25,289 HKD

$3,223 USD

View

Retailer 12

HK$26,068 HKD

CA$4,614 CAD

View

B+

Retailer 13

HK$27,540 HKD

$3,510 USD

View

Retailer 14

HK$28,594 HKD

$3,644 USD

View

Retailer 15

HK$28,698 HKD

£2,880 GBP

View

Retailer 16

HK$30,850 HKD

£3,096 GBP

View

Retailer 17

HK$33,471 HKD

£3,359 GBP

View

Retailer 18

HK$36,663 HKD

$4,673 USD

View

Retailer 19

HK$40,392 HKD

A$7,920 AUD

View

Price last confirmed 121 days ago

Retailer 20

HK$42,480 HKD

$5,414 USD

View

Price last confirmed 54 days ago

Retailer 21

HK$44,197 HKD

$5,633 USD

View

Retailer 22

HK$62,450 HKD

$7,959 USD

View

Retailer 23

HK$63,789 HKD

$8,130 USD

View

Most Expensive

Yadav Diamonds

13305924 · Oct 29

HK$71,886 HKD

$9,162 USD

View

23 more retailers have this diamond

Prices start from HK$10,129 HKDSave up to HK$61,757 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.

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