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Marquise|Lab Grown|IGI

1.21ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG843637937

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG843637937

Diamond specifications and retailer prices

From HK$2,071 HKD
$264 USD
As of November 2, 2026
Save HK$14,875 HKD (88%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: HK$16,947 HKD at Brilliant Earth · As of October 31, 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG843637937 or 843637937. Listed at 18 retailers as of October 31, 2026, with prices from HK$2,071 to HK$16,947, a HK$14,875 spread on the same certified stone. Brilliant Earth lists it at HK$16,947. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843637937
Dimensions11.35 × 5.33 × 3.33 mm
L/W Ratio2.13
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.35 mm5.33 mm1.21 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843637937
Side View
Table 60.0%Crown 38.9°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 62.5%

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$2,641 HKD|Low: HK$2,071 HKD|High: HK$13,239 HKD|Avg: HK$6,396 HKD|-3.6%
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
Retailer 16
Retailer 17
November 2, 2026
Retailer 10HK$2,071 HKD
Retailer 14HK$2,338 HKD
Retailer 3HK$2,589 HKD
Retailer 1HK$2,641 HKD
Retailer 16HK$3,491 HKD
Retailer 17HK$3,844 HKD
Retailer 13HK$4,423 HKD
Retailer 12HK$4,925 HKD
Retailer 2HK$5,139 HKD
Retailer 6HK$6,080 HKD
Retailer 8HK$8,042 HKD
Retailer 4HK$8,332 HKD
Retailer 7HK$8,732 HKD
Retailer 5HK$9,140 HKD
Retailer 15HK$10,383 HKD
Retailer 11HK$12,819 HKD
Retailer 9HK$13,239 HKD

6 data points across 17 retailers

18 retailersHK$2,071 HKD to HK$16,947 HKD

A
Cheapest Retailer
-
HK$2,071 HKD
$264 USD
A
Retailer 2
-
HK$2,338 HKD
$298 USD
View
Final sale: no returns
A
Retailer 3
-
HK$2,589 HKD
$330 USD
View
A
Retailer 4
-
HK$2,641 HKD
£265 GBP
View
A
Retailer 5
-
HK$3,491 HKD
$445 USD
View
A
Retailer 6
-
HK$3,844 HKD
$490 USD
View
A
Retailer 7
-
HK$4,423 HKD
ZAR 9,107 ZAR
View
A
Retailer 8
-
HK$4,925 HKD
£494 GBP
View
A
Retailer 9
-
HK$5,139 HKD
$655 USD
View
B+
Retailer 10
-
HK$6,080 HKD
$775 USD
View
B+
Retailer 11
-
HK$8,042 HKD
$1,025 USD
View
B+
Retailer 12
-
HK$8,332 HKD
$1,062 USD
View
B+
Retailer 13
-
HK$8,732 HKD
$1,113 USD
View
B+
Retailer 14
-
HK$9,140 HKD
$1,165 USD
View
B
Retailer 15
-
HK$10,383 HKD
£1,042 GBP
View
B
Retailer 16
-
HK$12,819 HKD
SGD 2,208 SGD
View
B
Retailer 17
-
HK$13,239 HKD
A$2,596 AUD
View
Most Expensive
B
Brilliant Earth
22406151A · Oct 31
HK$16,947 HKD
$2,160 USD
View
17 more retailers have this diamond
Prices start from HK$2,071 HKDSave up to HK$14,875 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$2,071 HKD