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Cushion|Lab Grown|IGI

11.09ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG678596589

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG678596589

Diamond specifications and retailer prices

From HK$21,497 HKD
$2,740 USD
As of November 2, 2026
Save HK$49,127 HKD (70%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$70,624 HKD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 11.09ct lab-grown cushion diamond

This 11.09ct 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 LG678596589 or 678596589. Listed at 11 retailers as of October 31, 2026, with prices from HK$21,497 to HK$70,624, a HK$49,127 spread on the same certified stone. Taylor and Hart lists it at HK$70,624. 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

11.09
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle33.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG678596589
Dimensions15.34 × 11.73 × 7.57 mm
L/W Ratio1.31
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
15.34 mm11.73 mm11.09 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG678596589
Side View
Table 60.0%Crown 35.6°Girdle: STK-THKPavilion 33.8°Culet: NoneDepth 64.5%

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 2
Current: HK$27,591 HKD|Low: HK$16,316 HKD|High: HK$72,689 HKD|Avg: HK$39,618 HKD|-3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
November 2, 2026
Retailer 6HK$16,316 HKD
Retailer 7HK$20,211 HKD
Retailer 5HK$21,497 HKD
Retailer 1HK$27,591 HKD
Retailer 4HK$31,287 HKD
Retailer 10HK$31,555 HKD
Retailer 3HK$37,447 HKD
Retailer 8HK$38,381 HKD
Retailer 2HK$53,963 HKD
Retailer 9HK$57,540 HKD
Taylor and HartHK$70,624 HKD

43 data points across 11 retailers

11 retailersHK$21,497 HKD to HK$70,624 HKD

Retailer 1
-
HK$16,316 HKD
£1,638 GBP
Price last confirmed 16 days ago
Retailer 2
-
HK$20,211 HKD
$2,576 USD
View
Price last confirmed 22 days ago
A
Retailer 3
-
HK$21,497 HKD
$2,740 USD
View
A
Retailer 4
-
HK$27,591 HKD
£2,769 GBP
View
A
Retailer 5
-
HK$31,287 HKD
ZAR 64,423 ZAR
View
A
Retailer 6
-
HK$31,555 HKD
$4,022 USD
View
B+
Retailer 7
-
HK$37,447 HKD
A$7,343 AUD
View
B+
Retailer 8
-
HK$38,381 HKD
£3,852 GBP
View
B+
Retailer 9
-
HK$53,963 HKD
$6,878 USD
View
B+
Retailer 10
-
HK$57,540 HKD
$7,334 USD
View
Most Expensive
B
Taylor and Hart
BUENFQE · Oct 31
HK$70,624 HKD
$9,002 USD
View
10 more retailers have this diamond
Prices start from HK$21,497 HKDSave up to HK$49,127 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
11.09ct Cushion
HK$21,497 HKD