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Marquise|Lab Grown|IGI

4.18ct F SI1 Marquise Lab Grown Diamond

ID • F/SI1 • IGI LG704536646

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG704536646

Diamond specifications and retailer prices

From HK$4,417 HKD
$563 USD
As of November 2, 2026
Save HK$34,813 HKD (89%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$39,231 HKD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 4.18ct lab-grown marquise diamond

This 4.18ct lab-grown marquise sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG704536646 or 704536646. Listed at 11 retailers as of November 2, 2026, with prices from HK$4,417 to HK$39,231, a HK$34,813 spread on the same certified stone. Do Amore Diamonds lists it at HK$39,231. 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

4.18
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG704536646
Dimensions16.78 × 8.33 × 5.26 mm
L/W Ratio2.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.78 mm8.33 mm4.18 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG704536646
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 63.1%

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: Nov 2
Current: HK$39,231 HKD|Low: HK$4,417 HKD|High: HK$48,489 HKD|Avg: HK$17,218 HKD|-1.0%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 10HK$4,417 HKD
Retailer 8HK$4,943 HKD
Retailer 2HK$5,212 HKD
Retailer 5HK$6,551 HKD
Retailer 9HK$8,435 HKD
Retailer 7HK$13,582 HKD
Retailer 11HK$15,420 HKD
Retailer 3HK$15,896 HKD
Retailer 4HK$23,815 HKD
Retailer 6HK$27,148 HKD
Do Amore DiamondsHK$39,231 HKD

22 data points across 11 retailers

11 retailersHK$4,417 HKD to HK$39,231 HKD

A
Cheapest Retailer
-
HK$4,417 HKD
$563 USD
A
Retailer 2
-
HK$4,943 HKD
$630 USD
View
A
Retailer 3
-
HK$5,212 HKD
£523 GBP
View
A
Retailer 4
-
HK$6,551 HKD
$835 USD
View
B+
Retailer 5
-
HK$8,435 HKD
$1,075 USD
View
B+
Retailer 6
-
HK$13,582 HKD
$1,731 USD
View
B+
Retailer 7
-
HK$15,420 HKD
$1,965 USD
View
B+
Retailer 8
-
HK$15,896 HKD
$2,026 USD
View
B
Retailer 9
-
HK$23,815 HKD
£2,390 GBP
View
B
Retailer 10
-
HK$27,148 HKD
$3,460 USD
View
Most Expensive
B
Do Amore Diamonds
27-02B568ED9 · Nov 2
HK$39,231 HKD
$5,000 USD
View
10 more retailers have this diamond
Prices start from HK$4,417 HKDSave up to HK$34,813 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
4.18ct Marquise
HK$4,417 HKD