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Round|Lab Grown|IGI

3.50ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG655449566

Shape and cutting style on the report: Round brilliant

Certificate IGI LG655449566

Diamond specifications and retailer prices

From HK$3,005 HKD
$383 USD
As of October 29, 2026
Save HK$11,633 HKD (79%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$14,829 HKD at Michael Trio · As of October 13, 2026
View at Michael Trio

About this 3.5ct lab-grown round diamond

This 3.5ct lab-grown round 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 LG655449566 or 655449566. Listed at 9 retailers as of October 29, 2026, with a 387% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.50
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG655449566
Dimensions9.74 × 9.70 × 6.03 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.74 mm9.70 mm3.50 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG655449566
Side View
Table 56.0%Crown 35.8°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.0%

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$14,829 HKD|Low: HK$3,311 HKD|High: HK$17,535 HKD|Avg: HK$9,524 HKD|-0.6%
Michael Trio
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 8HK$3,366 HKD
Retailer 2HK$4,993 HKD
Retailer 5HK$5,973 HKD
Retailer 10HK$6,276 HKD
Retailer 4HK$8,655 HKD
Retailer 3HK$9,063 HKD
Retailer 11HK$9,635 HKD
Retailer 9HK$10,451 HKD
Retailer 7HK$10,475 HKD
Retailer 6HK$14,638 HKD
Michael TrioHK$14,829 HKD
Retailer 12HK$17,535 HKD

37 data points across 12 retailers

9 retailersHK$3,005 HKD to HK$14,638 HKD

A
Cheapest Retailer
-
HK$3,005 HKD
$383 USD
A
Retailer 2
-
HK$3,366 HKD
$429 USD
View
A
Retailer 3
-
HK$4,993 HKD
£501 GBP
View
A
Retailer 4
-
HK$5,973 HKD
€725 EUR
View
B+
Retailer 5
-
HK$10,451 HKD
$1,332 USD
View
B+
Retailer 6
-
HK$10,475 HKD
$1,335 USD
View
B+
Retailer 7
-
HK$11,981 HKD
$1,527 USD
View
B+
Retailer 8
-
HK$14,638 HKD
£1,469 GBP
View
Most Expensive
Michael Trio
1371818661 · Oct 13
HK$14,829 HKD
SGD 2,554 SGD
View
Price last confirmed 17 days ago
8 more retailers have this diamond
Prices start from HK$3,005 HKDSave up to HK$11,633 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
3.50ct Round
HK$3,005 HKD