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Cushion|Lab Grown|IGI

3.55ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG688511564

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG688511564

Diamond specifications and retailer prices

From HK$4,419 HKD
As of October 31, 2026
Save HK$11,165 HKD (72%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$15,584 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 3.55ct lab-grown cushion diamond

This 3.55ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG688511564 or 688511564. Listed at 13 retailers as of October 31, 2026, with prices from HK$4,419 to HK$15,584, a HK$11,165 spread on the same certified stone. MOH London lists it at HK$15,584. 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

3.55
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG688511564
Dimensions8.98 × 8.81 × 5.86 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.98 mm8.81 mm3.55 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG688511564
Side View
Table 65.0%Crown 36.1°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 66.5%

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: Oct 31
Current: HK$15,584 HKD|Low: HK$4,419 HKD|High: HK$44,642 HKD|Avg: HK$14,320 HKD|-0.5%
MOH London
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
November 1, 2026
Retailer 14HK$4,419 HKD
Retailer 2HK$4,440 HKD
Retailer 11HK$5,139 HKD
Retailer 10HK$6,302 HKD
Retailer 4HK$6,308 HKD
Retailer 13HK$6,559 HKD
Retailer 9HK$6,561 HKD
Retailer 12HK$8,394 HKD
Retailer 16HK$8,658 HKD
Retailer 15HK$9,525 HKD
Retailer 5HK$13,094 HKD
Retailer 3HK$14,923 HKD
MOH LondonHK$15,584 HKD
Retailer 8HK$26,905 HKD
Retailer 6HK$32,582 HKD
Retailer 7HK$44,642 HKD

6 data points across 16 retailers

13 retailersHK$4,419 HKD to HK$15,584 HKD

A
Cheapest Retailer
-
HK$4,419 HKD
A
Retailer 2
-
HK$4,440 HKD
£446 GBP
View
A
Retailer 3
-
HK$5,139 HKD
$655 USD
View
A
Retailer 4
-
HK$6,302 HKD
€765 EUR
View
B+
Retailer 5
-
HK$6,308 HKD
$804 USD
View
A
Retailer 6
-
HK$6,559 HKD
$836 USD
View
A
Retailer 7
-
HK$6,561 HKD
£658 GBP
View
A
Retailer 8
-
HK$8,394 HKD
A$1,646 AUD
View
A
Retailer 9
-
HK$8,658 HKD
ZAR 17,827 ZAR
View
A
Retailer 10
-
HK$9,525 HKD
$1,214 USD
View
B+
Retailer 11
-
HK$13,094 HKD
$1,669 USD
View
B+
Retailer 12
-
HK$14,923 HKD
$1,902 USD
View
Most Expensive
B+
MOH London
LG688511564 · Nov 1
HK$15,584 HKD
£1,564 GBP
View
12 more retailers have this diamond
Prices start from HK$4,419 HKDSave up to HK$11,165 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
3.55ct Cushion
HK$4,419 HKD