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Marquise|Lab Grown|IGI

1.20ct E IF Marquise Lab Grown Diamond

ID • E/IF • IGI LG799699355

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG799699355

Diamond specifications and retailer prices

From HK$3,295 HKD
As of November 4, 2026
Save HK$9,493 HKD (74%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: HK$12,789 HKD at Brilliant Earth · As of November 4, 2026
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 LG799699355 or 799699355. Listed at 10 retailers as of November 4, 2026, with prices from HK$3,295 to HK$12,789, a HK$9,493 spread on the same certified stone. Brilliant Earth lists it at HK$12,789. 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 angle34.4°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799699355
Dimensions10.84 × 5.52 × 3.50 mm
L/W Ratio1.96
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.84 mm5.52 mm1.20 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799699355
Side View
Table 61.0%Crown 34.4°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 63.4%

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 4
Current: HK$12,789 HKD|Low: HK$3,295 HKD|High: HK$19,599 HKD|Avg: HK$7,532 HKD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 4, 2026
Retailer 8HK$3,295 HKD
Retailer 4HK$4,182 HKD
Retailer 6HK$4,409 HKD
Retailer 2HK$4,598 HKD
Retailer 5HK$6,088 HKD
Retailer 7HK$8,246 HKD
Retailer 3HK$9,784 HKD
Retailer 9HK$12,279 HKD
Brilliant EarthHK$12,789 HKD

39 data points across 9 retailers

10 retailersHK$3,295 HKD to HK$12,789 HKD

Retailer 1
-
HK$3,209 HKD
Price last confirmed 61 days ago
A
Retailer 2
-
HK$3,295 HKD
View
Retailer 3
-
HK$4,182 HKD
View
Price last confirmed 8 days ago
A
Retailer 4
-
HK$4,409 HKD
View
A
Retailer 5
-
HK$4,598 HKD
View
B+
Retailer 6
-
HK$6,088 HKD
View
B+
Retailer 7
-
HK$8,246 HKD
View
B+
Retailer 8
-
HK$9,784 HKD
View
Retailer 9
-
HK$12,279 HKD
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
19847259A · Nov 4
HK$12,789 HKD
$1,630 USD
View
9 more retailers have this diamond
Prices start from HK$3,295 HKDSave up to HK$9,493 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
1.20ct Marquise
HK$3,295 HKD