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Marquise|Lab Grown|IGI

3.10ct E SI1 Marquise Lab Grown Diamond

ID • E/SI1 • IGI LG737560142

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG737560142

Diamond specifications and retailer prices

From HK$19,395 HKD
$2,472 USD
As of October 31, 2026
1 retailer carries this diamond
Only listing: HK$19,395 HKD at Blue Nile
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Blue Nile

About this 3.1ct lab-grown marquise diamond

This 3.1ct lab-grown marquise 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 LG737560142 or 737560142. Listed at a single retailer as of October 31, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

3.10
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG737560142
Dimensions15.17 × 7.58 × 4.80 mm
L/W Ratio2.00
Girdle conditionFaceted
Culet sizePointed
Top View
15.17 mm7.58 mm3.10 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG737560142
Side View
Table 61.0%Crown 35.1°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 63.3%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 31
Current: HK$19,395 HKD|Low: HK$2,205 HKD|High: HK$25,283 HKD|Avg: HK$9,441 HKD
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
September 26, 2026
Retailer 10HK$4,778 HKD
Retailer 8HK$5,060 HKD
Retailer 3HK$5,221 HKD
Retailer 2HK$6,139 HKD
Retailer 6HK$6,951 HKD
Retailer 7HK$7,391 HKD
Retailer 5HK$8,607 HKD
Retailer 4HK$10,035 HKD
Retailer 9HK$12,295 HKD
Blue NileHK$19,395 HKD
Retailer 11HK$22,993 HKD

66 data points across 11 retailers

1 retailer

B
Blue Nile
28730592 · Oct 31
HK$19,395 HKD
$2,472 USD
View

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B
3.10ct Marquise
HK$19,395 HKD