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Cushion|Lab Grown|IGI

3.55ct G VS1 Cushion Lab Grown Diamond

EX • G/VS1 • IGI LG574366459

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG574366459

Diamond specifications and retailer prices

From HK$6,175 HKD
$787 USD
As of October 31, 2026
Save HK$21,991 HKD (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: HK$28,166 HKD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

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 LG574366459 or 574366459. Listed at 15 retailers as of October 31, 2026, with prices from HK$6,175 to HK$28,166, a HK$21,991 spread on the same certified stone. Brilliant Earth lists it at HK$28,166. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle34.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG574366459
Dimensions9.52 × 7.93 × 5.36 mm
L/W Ratio1.20
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
9.52 mm7.93 mm3.55 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG574366459
Side View
Table 62.0%Crown 36.4°Girdle: STK-VTKPavilion 34.1°Culet: NoneDepth 67.6%

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 31
Current: HK$28,166 HKD|Low: HK$5,437 HKD|High: HK$29,029 HKD|Avg: HK$15,351 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
Retailer 15
November 1, 2026
Retailer 5HK$6,175 HKD
Retailer 12HK$6,402 HKD
Retailer 11HK$7,885 HKD
Retailer 4HK$8,928 HKD
Retailer 2HK$10,171 HKD
Retailer 15HK$10,301 HKD
Retailer 14HK$10,388 HKD
Retailer 8HK$14,453 HKD
Retailer 10HK$14,858 HKD
Retailer 3HK$19,848 HKD
Retailer 13HK$21,827 HKD
Retailer 6HK$21,962 HKD
Retailer 7HK$22,065 HKD
Retailer 9HK$25,269 HKD
Brilliant EarthHK$28,166 HKD

43 data points across 15 retailers

15 retailersHK$6,175 HKD to HK$28,166 HKD

A
Cheapest Retailer
-
HK$6,175 HKD
$787 USD
Final sale: no returns
Retailer 2
-
HK$6,402 HKD
$816 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
HK$7,885 HKD
$1,005 USD
View
A
Retailer 4
-
HK$8,928 HKD
$1,138 USD
View
A
Retailer 5
-
HK$10,171 HKD
£1,021 GBP
View
A
Retailer 6
-
HK$10,301 HKD
$1,313 USD
View
A
Retailer 7
-
HK$10,388 HKD
$1,324 USD
View
B+
Retailer 8
-
HK$14,453 HKD
A$2,834 AUD
View
B+
Retailer 9
-
HK$14,858 HKD
ZAR 30,595 ZAR
View
B
Retailer 10
-
HK$19,848 HKD
£1,992 GBP
View
B
Retailer 11
-
HK$21,827 HKD
$2,782 USD
View
B
Retailer 12
-
HK$21,962 HKD
$2,799 USD
View
B
Retailer 13
-
HK$22,065 HKD
$2,812 USD
View
B
Retailer 14
-
HK$25,269 HKD
£2,536 GBP
View
Most Expensive
B
Brilliant Earth
19068869A · Oct 31
HK$28,166 HKD
$3,590 USD
View
14 more retailers have this diamond
Prices start from HK$6,175 HKDSave up to HK$21,991 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$6,175 HKD