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Cushion|Lab Grown|IGI

3.05ct E SI1 Cushion Lab Grown Diamond

ID • E/SI1 • IGI LG671479495

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG671479495

Diamond specifications and retailer prices

From HK$4,943 HKD
$630 USD
As of October 29, 2026
Save HK$34,286 HKD (87%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$39,229 HKD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 3.05ct lab-grown cushion diamond

This 3.05ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG671479495 or 671479495. Listed at 8 retailers as of October 29, 2026, with prices from HK$4,943 to HK$39,229, a HK$34,286 spread on the same certified stone. Do Amore Diamonds lists it at HK$39,229. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

3.05
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG671479495
Dimensions8.64 × 8.42 × 5.48 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.64 mm8.42 mm3.05 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG671479495
Side View
Table 66.0%Crown 33.7°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 65.1%

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 29
Current: HK$6,826 HKD|Low: HK$3,523 HKD|High: HK$16,318 HKD|Avg: HK$9,309 HKD|+24.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 6HK$4,943 HKD
Retailer 7HK$6,810 HKD
Retailer 1HK$6,826 HKD
Retailer 8HK$7,294 HKD
Retailer 4HK$8,238 HKD
Retailer 2HK$9,479 HKD
Retailer 5HK$15,436 HKD
Retailer 3HK$15,456 HKD

11 data points across 8 retailers

8 retailersHK$4,943 HKD to HK$39,229 HKD

A
Cheapest Retailer
-
HK$4,943 HKD
$630 USD
Final sale: no returns
A
Retailer 2
-
HK$6,810 HKD
$868 USD
View
A
Retailer 3
-
HK$6,826 HKD
$870 USD
View
A
Retailer 4
-
HK$8,238 HKD
$1,050 USD
View
B+
Retailer 5
-
HK$9,479 HKD
£951 GBP
View
B+
Retailer 6
-
HK$15,436 HKD
$1,967 USD
View
B
Retailer 7
-
HK$15,456 HKD
$1,970 USD
View
Most Expensive
B
Do Amore Diamonds
27-27E6388C2 · Oct 29
HK$39,229 HKD
$5,000 USD
View
7 more retailers have this diamond
Prices start from HK$4,943 HKDSave up to HK$34,286 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
3.05ct Cushion
HK$4,943 HKD