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Round|Lab Grown|IGI

1.21ct F SI1 Round Lab Grown Diamond

VG • F/SI1 • IGI LG763668397

Shape and cutting style on the report: Round brilliant

Certificate IGI LG763668397

Diamond specifications and retailer prices

From HK$1,262 HKD
As of November 1, 2026
Save HK$6,034 HKD (83%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: HK$7,296 HKD at MOH London · As of November 1, 2026
View at MOH London

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG763668397 or 763668397. Listed at 13 retailers as of November 1, 2026, with prices from HK$1,262 to HK$7,296, a HK$6,034 spread on the same certified stone. MOH London lists it at HK$7,296. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.21
Carat
F
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
Crown angle36.1°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG763668397
Dimensions6.92 × 6.90 × 4.05 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
6.92 mm6.90 mm1.21 ctF / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateIGI LG763668397
Side View
Table 60.0%Crown 36.1°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 58.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: HK$7,296 HKD|Low: HK$1,191 HKD|High: HK$7,505 HKD|Avg: HK$3,221 HKD|-2.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 10HK$1,262 HKD
Retailer 11HK$1,411 HKD
Retailer 5HK$1,552 HKD
Retailer 4HK$1,560 HKD
Retailer 2HK$2,712 HKD
Retailer 8HK$2,720 HKD
Retailer 13HK$2,814 HKD
Retailer 3HK$2,892 HKD
Retailer 12HK$3,519 HKD
Retailer 6HK$3,527 HKD
Retailer 7HK$4,264 HKD
Retailer 9HK$4,311 HKD
MOH LondonHK$7,296 HKD

36 data points across 13 retailers

13 retailersHK$1,262 HKD to HK$7,296 HKD

A
Cheapest Retailer
-
HK$1,262 HKD
A
Retailer 2
-
HK$1,411 HKD
View
Final sale: no returns
Retailer 3
-
HK$1,552 HKD
View
Price last confirmed 53 days ago
Retailer 4
-
HK$1,560 HKD
View
Price last confirmed 13 days ago
B+
Retailer 5
-
HK$2,712 HKD
View
B+
Retailer 6
-
HK$2,720 HKD
View
B
Retailer 7
-
HK$2,814 HKD
View
B+
Retailer 8
-
HK$2,892 HKD
View
B+
Retailer 9
-
HK$3,519 HKD
View
B+
Retailer 10
-
HK$3,527 HKD
View
B
Retailer 11
-
HK$4,264 HKD
View
B
Retailer 12
-
HK$4,311 HKD
View
Most Expensive
B
MOH London
LG763668397 · Nov 1
HK$7,296 HKD
£733 GBP
View
12 more retailers have this diamond
Prices start from HK$1,262 HKDSave up to HK$6,034 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$1,262 HKD