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Cushion|Lab Grown|IGI

3.06ct E VS1 Cushion Lab Grown Diamond

EX • E/VS1 • IGI LG670420305

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG670420305

Diamond specifications and retailer prices

From HK$4,582 HKD
$584 USD
As of October 31, 2026
Save HK$14,248 HKD (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$22,889 HKD at Rare Carat · As of July 27, 2026
View at Rare Carat

About this 3.06ct lab-grown cushion diamond

This 3.06ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG670420305 or 670420305. Listed at 16 retailers as of October 30, 2026, with a 311% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.06
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG670420305
Dimensions8.57 × 8.39 × 5.55 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
8.57 mm8.39 mm3.06 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG670420305
Side View
Table 62.0%Crown 33.9°Girdle: STK-THKPavilion 39.7°Culet: NoneDepth 66.2%

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$7,872 HKD|Low: HK$3,946 HKD|High: HK$21,453 HKD|Avg: HK$10,277 HKD|+11.8%
Retailer 1
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
October 31, 2026
Retailer 3HK$4,582 HKD
Retailer 6HK$5,076 HKD
Retailer 9HK$5,811 HKD
Retailer 8HK$6,159 HKD
Retailer 11HK$7,068 HKD
Retailer 1HK$7,872 HKD
Retailer 4HK$7,877 HKD
Retailer 14HK$7,877 HKD
Retailer 15HK$10,372 HKD
Retailer 10HK$10,725 HKD
Retailer 12HK$10,924 HKD
Retailer 2HK$16,511 HKD
Retailer 5HK$17,426 HKD
Retailer 7HK$18,830 HKD
Retailer 13HK$21,313 HKD

34 data points across 15 retailers

16 retailersHK$4,582 HKD to HK$18,830 HKD

A
Cheapest Retailer
-
HK$4,582 HKD
$584 USD
Final sale: no returns
Retailer 2
-
HK$5,076 HKD
$647 USD
View
Price last confirmed 20 days ago
A
Retailer 3
-
HK$5,811 HKD
£583 GBP
View
A
Retailer 4
-
HK$6,159 HKD
$785 USD
View
A
Retailer 5
-
HK$7,068 HKD
€858 EUR
View
A
Retailer 6
-
HK$7,872 HKD
£790 GBP
View
A
Retailer 7
-
HK$7,877 HKD
$1,004 USD
View
A
Retailer 8
-
HK$7,877 HKD
$1,004 USD
View
A
Retailer 9
-
HK$10,372 HKD
$1,322 USD
View
A
Retailer 10
-
HK$10,725 HKD
A$2,103 AUD
View
Retailer 11
-
HK$10,924 HKD
ZAR 22,493 ZAR
View
Price last confirmed 12 days ago
B+
Retailer 12
-
HK$16,511 HKD
$2,104 USD
View
B+
Retailer 13
-
HK$17,426 HKD
$2,221 USD
View
B
Retailer 14
-
HK$18,830 HKD
$2,400 USD
View
Retailer 15
-
HK$21,313 HKD
£2,139 GBP
View
Price last confirmed 10 days ago
Most Expensive
Rare Carat
674847 · Jul 27
HK$22,889 HKD
$2,917 USD
View
Price last confirmed 95 days ago
15 more retailers have this diamond
Prices start from HK$4,582 HKDSave up to HK$14,248 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
3.06ct Cushion
HK$4,582 HKD