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Round|Lab Grown|IGI

1.21ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG656491314

Shape and cutting style on the report: Round brilliant

Certificate IGI LG656491314

Diamond specifications and retailer prices

From HK$1,671 HKD
As of November 5, 2026
Save HK$11,352 HKD (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$13,023 HKD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG656491314 or 656491314. Listed at 22 retailers as of November 3, 2026, with a 679% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG656491314
Dimensions6.90 × 6.92 × 4.13 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.90 mm6.92 mm1.21 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG656491314
Side View
Table 60.0%Crown 33.9°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 59.8%

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$13,023 HKD|Low: HK$1,671 HKD|High: HK$13,023 HKD|Avg: HK$5,018 HKD
Brilliant Earth
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
Retailer 18
November 5, 2026
Retailer 10HK$1,742 HKD
Retailer 3HK$1,875 HKD
Retailer 9HK$1,938 HKD
Retailer 7HK$2,071 HKD
Retailer 4HK$2,785 HKD
Retailer 17HK$3,491 HKD
Retailer 15HK$3,570 HKD
Retailer 2HK$3,781 HKD
Retailer 18HK$3,978 HKD
Retailer 14HK$5,068 HKD
Retailer 5HK$6,441 HKD
Retailer 6HK$6,661 HKD
Retailer 13HK$6,684 HKD
Retailer 8HK$7,069 HKD
Retailer 16HK$7,076 HKD
Retailer 11HK$8,277 HKD
Retailer 12HK$8,983 HKD
Brilliant EarthHK$13,023 HKD

43 data points across 18 retailers

22 retailersHK$1,671 HKD to HK$13,023 HKD

A
Cheapest Retailer
-
HK$1,671 HKD
Retailer 2
-
HK$1,742 HKD
View
Price last confirmed 10 days ago
A
Retailer 3
-
HK$1,875 HKD
View
Final sale: no returns
Retailer 4
-
HK$1,938 HKD
View
Price last confirmed 9 days ago
Retailer 5
-
HK$2,071 HKD
View
Price last confirmed 9 days ago
Retailer 6
-
HK$2,157 HKD
View
Price last confirmed 11 days ago
B+
Retailer 7
-
HK$2,785 HKD
View
Retailer 8
-
HK$3,491 HKD
View
Price last confirmed 7 days ago
A
Retailer 9
-
HK$3,570 HKD
View
A
Retailer 10
-
HK$3,781 HKD
View
A
Retailer 11
-
HK$3,978 HKD
View
B+
Retailer 12
-
HK$5,068 HKD
View
B+
Retailer 13
-
HK$5,445 HKD
View
B+
Retailer 14
-
HK$6,441 HKD
View
Retailer 15
-
HK$6,661 HKD
View
Price last confirmed 9 days ago
B
Retailer 16
-
HK$6,684 HKD
View
B
Retailer 17
-
HK$7,069 HKD
View
B
Retailer 18
-
HK$7,076 HKD
View
B+
Retailer 19
-
HK$8,277 HKD
View
B
Retailer 20
-
HK$8,983 HKD
View
B
Retailer 21
-
HK$13,023 HKD
View
Most Expensive
Brilliant Earth
20628276A · Oct 26
HK$13,023 HKD
$1,660 USD
View
Price last confirmed 9 days ago
21 more retailers have this diamond
Prices start from HK$1,671 HKDSave up to HK$11,352 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 Round
HK$1,671 HKD