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Cushion|Lab Grown|IGI

11.45ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG618439643

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG618439643

Diamond specifications and retailer prices

From HK$15,868 HKD
£1,592 GBP
As of November 2, 2026
Save HK$130,070 HKD (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$145,937 HKD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 11.45ct lab-grown cushion diamond

This 11.45ct lab-grown cushion sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG618439643 or 618439643. Listed at 19 retailers as of November 2, 2026, with prices from HK$15,868 to HK$145,937, a HK$130,070 spread on the same certified stone. Brilliant Earth lists it at HK$145,937. 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

11.45
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle31.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG618439643
Dimensions12.43 × 12.29 × 7.97 mm
L/W Ratio1.01
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
12.43 mm12.29 mm11.45 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG618439643
Side View
Table 63.0%Crown 38°Girdle: THK-VTKPavilion 31.2°Culet: NoneDepth 64.8%

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$145,937 HKD|Low: HK$15,868 HKD|High: HK$150,410 HKD|Avg: HK$39,549 HKD|+10.5%
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
Retailer 15
November 2, 2026
Retailer 8HK$15,868 HKD
Retailer 3HK$19,066 HKD
Retailer 6HK$19,756 HKD
Retailer 15HK$21,067 HKD
Retailer 7HK$23,876 HKD
Retailer 9HK$26,970 HKD
Retailer 13HK$28,246 HKD
Retailer 2HK$28,450 HKD
Retailer 11HK$29,815 HKD
Retailer 12HK$30,587 HKD
Retailer 10HK$36,608 HKD
Retailer 14HK$47,116 HKD
Retailer 5HK$52,757 HKD
Retailer 4HK$55,980 HKD
Brilliant EarthHK$145,937 HKD

42 data points across 15 retailers

19 retailersHK$15,868 HKD to HK$145,937 HKD

A
Cheapest Retailer
-
HK$15,868 HKD
£1,592 GBP
A
Retailer 2
-
HK$19,066 HKD
$2,430 USD
View
Final sale: no returns
Retailer 3
-
HK$19,756 HKD
$2,518 USD
View
Price last confirmed 22 days ago
A
Retailer 4
-
HK$21,067 HKD
$2,685 USD
View
A
Retailer 5
-
HK$23,876 HKD
$3,043 USD
View
A
Retailer 6
-
HK$26,970 HKD
£2,707 GBP
View
A
Retailer 7
-
HK$28,246 HKD
$3,600 USD
View
A
Retailer 8
-
HK$28,450 HKD
$3,626 USD
View
A
Retailer 9
-
HK$29,815 HKD
€3,619 EUR
View
A
Retailer 10
-
HK$30,587 HKD
ZAR 62,979 ZAR
View
A
Retailer 11
-
HK$36,608 HKD
A$7,178 AUD
View
B+
Retailer 12
-
HK$37,546 HKD
£3,768 GBP
View
B+
Retailer 13
-
HK$47,116 HKD
$6,005 USD
View
B+
Retailer 14
-
HK$49,016 HKD
$6,247 USD
View
B+
Retailer 15
-
HK$52,757 HKD
$6,724 USD
View
B+
Retailer 16
-
HK$55,980 HKD
$7,135 USD
View
B
Retailer 17
-
HK$60,815 HKD
$7,751 USD
View
B
Retailer 18
-
HK$69,065 HKD
$8,803 USD
View
Most Expensive
B
Brilliant Earth
10794074A · Nov 2
HK$145,937 HKD
$18,600 USD
View
18 more retailers have this diamond
Prices start from HK$15,868 HKDSave up to HK$130,070 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
11.45ct Cushion
HK$15,868 HKD