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Marquise|Lab Grown|IGI

1.20ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG818661434

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818661434

Diamond specifications and retailer prices

From HK$16,162 HKD
$2,060 USD
As of November 4, 2026
3 retailers carry this diamond
Most expensive: HK$16,162 HKD at Brilliant Earth
View at Brilliant Earth

About this 1.2ct lab-grown marquise diamond

This 1.2ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818661434 or 818661434. Listed at 3 retailers as of November 4, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818661434
Dimensions10.79 × 5.48 × 3.56 mm
L/W Ratio1.97
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.79 mm5.48 mm1.20 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818661434
Side View
Table 59.0%Crown 35.2°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 65.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 4
Current: HK$16,162 HKD|Low: HK$3,499 HKD|High: HK$16,162 HKD|Avg: HK$8,277 HKD|+0.5%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
September 7, 2026
Retailer 3HK$4,527 HKD
Retailer 5HK$4,762 HKD
Retailer 2HK$4,943 HKD
Retailer 7HK$6,206 HKD
Retailer 8HK$6,708 HKD
Retailer 9HK$9,635 HKD
Retailer 4HK$10,082 HKD
Retailer 6HK$12,279 HKD
Brilliant EarthHK$16,162 HKD

19 data points across 9 retailers

3 retailers

Retailer 1
-
HK$6,708 HKD
Price last confirmed 77 days ago
Retailer 2
-
HK$12,279 HKD
View
Price last confirmed 59 days ago
Most Expensive
B
Brilliant Earth
21035757A · Nov 4
HK$16,162 HKD
$2,060 USD
View
2 more retailers have this diamond

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.

B
1.20ct Marquise
HK$16,162 HKD