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Cushion|Lab Grown|IGI

11.73ct G VS2 Cushion Lab Grown Diamond

ID • G/VS2 • IGI LG620435609

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG620435609

Diamond specifications and retailer prices

From HK$15,132 HKD
£1,519 GBP
As of October 30, 2026
Save HK$57,833 HKD (79%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$72,965 HKD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 11.73ct lab-grown cushion diamond

This 11.73ct lab-grown cushion sits in the over five carat band, graded G colour (near-colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG620435609 or 620435609. Listed at 16 retailers as of October 29, 2026, with prices from HK$15,132 to HK$72,965, a HK$57,833 spread on the same certified stone. Brilliant Earth lists it at HK$72,965. 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

11.73
Carat
G
Colour
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle32°
OriginLab Grown
Grading LabIGI
CertificateIGI LG620435609
Dimensions12.81 × 12.60 × 7.89 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.81 mm12.60 mm11.73 ctG / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG620435609
Side View
Table 63.0%Crown 37.9°Girdle: STK-VTKPavilion 32°Culet: NoneDepth 62.6%

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: Oct 30
Current: HK$72,965 HKD|Low: HK$15,132 HKD|High: HK$75,240 HKD|Avg: HK$34,383 HKD|-3.0%
Brilliant Earth
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
October 31, 2026
Retailer 7HK$15,132 HKD
Retailer 14HK$18,131 HKD
Retailer 3HK$18,783 HKD
Retailer 11HK$20,085 HKD
Retailer 4HK$23,082 HKD
Retailer 2HK$25,846 HKD
Retailer 9HK$26,848 HKD
Retailer 10HK$27,381 HKD
Retailer 8HK$28,520 HKD
Retailer 5HK$35,631 HKD
Retailer 6HK$46,567 HKD
Retailer 13HK$50,605 HKD
Retailer 12HK$53,424 HKD
Brilliant EarthHK$72,965 HKD

42 data points across 14 retailers

16 retailersHK$15,132 HKD to HK$72,965 HKD

A
Cheapest Retailer
-
HK$15,132 HKD
£1,519 GBP
A
Retailer 2
-
HK$18,131 HKD
$2,311 USD
View
Final sale: no returns
Retailer 3
-
HK$18,783 HKD
$2,394 USD
View
Price last confirmed 20 days ago
A
Retailer 4
-
HK$20,085 HKD
$2,560 USD
View
A
Retailer 5
-
HK$23,082 HKD
$2,942 USD
View
A
Retailer 6
-
HK$25,846 HKD
£2,594 GBP
View
B+
Retailer 7
-
HK$26,848 HKD
$3,422 USD
View
A
Retailer 8
-
HK$27,381 HKD
$3,490 USD
View
A
Retailer 9
-
HK$28,520 HKD
€3,462 EUR
View
A
Retailer 10
-
HK$35,631 HKD
£3,576 GBP
View
B+
Retailer 11
-
HK$46,567 HKD
$5,935 USD
View
B+
Retailer 12
-
HK$50,605 HKD
$6,450 USD
View
B
Retailer 13
-
HK$53,424 HKD
$6,809 USD
View
B
Retailer 14
-
HK$61,848 HKD
$7,883 USD
View
B
Retailer 15
-
HK$65,706 HKD
$8,375 USD
View
Most Expensive
B
Brilliant Earth
10794619A · Oct 29
HK$72,965 HKD
$9,300 USD
View
15 more retailers have this diamond
Prices start from HK$15,132 HKDSave up to HK$57,833 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
11.73ct Cushion
HK$15,132 HKD