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Marquise|Lab Grown|IGI

1.21ct F IF Marquise Lab Grown Diamond

ID • F/IF • IGI LG786675964

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG786675964

Diamond specifications and retailer prices

From HK$2,150 HKD
As of November 5, 2026
Save HK$11,736 HKD (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$13,886 HKD at Brilliant Earth · As of November 4, 2026
View at Brilliant Earth

About this 1.21ct lab-grown marquise diamond

This 1.21ct lab-grown marquise sits in the classic one-carat band, graded F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG786675964 or 786675964. Listed at 17 retailers as of November 4, 2026, with prices from HK$2,150 to HK$13,886, a HK$11,736 spread on the same certified stone. Brilliant Earth lists it at HK$13,886. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
F
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786675964
Dimensions11.19 × 5.56 × 3.40 mm
L/W Ratio2.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.19 mm5.56 mm1.21 ctF / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786675964
Side View
Table 59.0%Crown 35.1°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 61.2%

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 5
Current: HK$8,339 HKD|Low: HK$2,150 HKD|High: HK$9,987 HKD|Avg: HK$5,777 HKD|-3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 6, 2026
Retailer 8HK$2,150 HKD
Retailer 12HK$2,244 HKD
Retailer 4HK$3,232 HKD
Retailer 7HK$3,687 HKD
Retailer 2HK$4,150 HKD
Retailer 6HK$4,456 HKD
Retailer 10HK$4,503 HKD
Retailer 3HK$4,856 HKD
Retailer 15HK$5,868 HKD
Retailer 5HK$6,331 HKD
Retailer 9HK$7,704 HKD
Retailer 13HK$7,728 HKD
Retailer 14HK$8,104 HKD
Retailer 1HK$8,339 HKD
Retailer 11HK$9,571 HKD

25 data points across 15 retailers

17 retailersHK$2,150 HKD to HK$13,886 HKD

A
Cheapest Retailer
-
HK$2,150 HKD
Final sale: no returns
A
Retailer 2
-
HK$2,244 HKD
View
A
Retailer 3
-
HK$3,232 HKD
View
Retailer 4
-
HK$3,687 HKD
View
Price last confirmed 13 days ago
A
Retailer 5
-
HK$4,150 HKD
View
Retailer 6
-
HK$4,456 HKD
View
Price last confirmed 8 days ago
A
Retailer 7
-
HK$4,503 HKD
View
A
Retailer 8
-
HK$4,856 HKD
View
B+
Retailer 9
-
HK$5,868 HKD
View
B+
Retailer 10
-
HK$6,331 HKD
View
B+
Retailer 11
-
HK$7,704 HKD
View
B+
Retailer 12
-
HK$7,728 HKD
View
B+
Retailer 13
-
HK$8,104 HKD
View
B+
Retailer 14
-
HK$8,339 HKD
View
Retailer 15
-
HK$8,747 HKD
View
Price last confirmed 32 days ago
B+
Retailer 16
-
HK$9,571 HKD
View
Most Expensive
B
Brilliant Earth
18735861A · Nov 4
HK$13,886 HKD
$1,770 USD
View
16 more retailers have this diamond
Prices start from HK$2,150 HKDSave up to HK$11,736 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
1.21ct Marquise
HK$2,150 HKD