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Emerald|Lab Grown|IGI

1.21ct F SI1 Emerald Lab Grown Diamond

ID • F/SI1 • IGI LG500144859

Shape and cutting style on the report: Emerald cut

Certificate IGI LG500144859

Diamond specifications and retailer prices

From HK$5,955 HKD
$759 USD
As of November 1, 2026
Save HK$10,467 HKD (64%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$25,878 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 1.21ct lab-grown emerald diamond

This 1.21ct lab-grown emerald sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG500144859 or 500144859. Listed at 12 retailers as of October 31, 2026, with a 176% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.21
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle25.5°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG500144859
Dimensions7.60 × 5.02 × 3.12 mm
L/W Ratio1.51
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.60 mm5.02 mm1.21 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG500144859
Side View
Table 68.5%Crown 25.5°Girdle: MediumPavilion 37.6°Culet: LNGDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$25,878 HKD|Low: HK$5,712 HKD|High: HK$26,227 HKD|Avg: HK$10,630 HKD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 7HK$5,955 HKD
Retailer 12HK$6,473 HKD
Retailer 3HK$6,653 HKD
Retailer 8HK$6,905 HKD
Retailer 11HK$6,905 HKD
Retailer 5HK$6,983 HKD
Retailer 4HK$8,278 HKD
Retailer 2HK$10,576 HKD
Retailer 9HK$11,173 HKD
Retailer 6HK$16,422 HKD
Retailer 10HK$19,411 HKD
MOH LondonHK$25,878 HKD

43 data points across 12 retailers

12 retailersHK$5,955 HKD to HK$16,422 HKD

B+
Cheapest Retailer
-
HK$5,955 HKD
$759 USD
B
Retailer 2
-
HK$6,473 HKD
$825 USD
View
B
Retailer 3
-
HK$6,653 HKD
$848 USD
View
Final sale: no returns
B
Retailer 4
-
HK$6,905 HKD
$880 USD
View
Retailer 5
-
HK$6,905 HKD
$880 USD
View
Price last confirmed 20 days ago
B
Retailer 6
-
HK$6,983 HKD
$890 USD
View
B
Retailer 7
-
HK$8,278 HKD
$1,055 USD
View
B
Retailer 8
-
HK$10,576 HKD
£1,061 GBP
View
B
Retailer 9
-
HK$11,173 HKD
$1,424 USD
View
B
Retailer 10
-
HK$16,422 HKD
$2,093 USD
View
Retailer 11
-
HK$19,411 HKD
$2,474 USD
View
Price under review
Most Expensive
MOH London
LG500144859 · Nov 1
HK$25,878 HKD
£2,597 GBP
View
Price under review
11 more retailers have this diamond
Prices start from HK$5,955 HKDSave up to HK$10,467 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.

B+
1.21ct Emerald
HK$5,955 HKD