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Round|Lab Grown|IGI

1.22ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG490175141

Shape and cutting style on the report: Round brilliant

Certificate IGI LG490175141

Diamond specifications and retailer prices

From $1,251 AUD
As of November 5, 2026
Save $1,079 AUD (46%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,228 AUD at Friendly Diamonds · As of November 4, 2026
View at Friendly Diamonds

About this 1.22ct lab-grown round diamond

This 1.22ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG490175141 or 490175141. Listed at 13 retailers as of November 4, 2026, with a 86% 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

1.22
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490175141
Dimensions6.77 × 6.82 × 4.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
6.77 mm6.82 mm1.22 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490175141
Side View
Table 56.0%Crown 35.8°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $3,228 AUD|Low: $1,201 AUD|High: $5,511 AUD|Avg: $2,358 AUD
Friendly Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 5$1,251 AUD
Retailer 6$1,314 AUD
Retailer 9$1,400 AUD
Retailer 7$1,451 AUD
Retailer 10$1,451 AUD
Retailer 11$1,700 AUD
Retailer 4$2,201 AUD
Retailer 8$2,330 AUD
Friendly Diamonds$3,228 AUD
Retailer 3$4,370 AUD
Retailer 2$5,424 AUD

41 data points across 11 retailers

13 retailers$1,251 AUD to $2,330 AUD

B
Cheapest Retailer
-
$1,251 AUD
B
Retailer 2
-
$1,314 AUD
View
B
Retailer 3
-
$1,361 AUD
View
B
Retailer 4
-
$1,400 AUD
View
Final sale: no returns
B
Retailer 5
-
$1,451 AUD
View
Retailer 6
-
$1,451 AUD
View
Price last confirmed 25 days ago
B
Retailer 7
-
$1,700 AUD
View
B
Retailer 8
-
$2,201 AUD
View
B
Retailer 9
-
$2,330 AUD
View
Most Expensive
Friendly Diamonds
1594935 · Nov 4
$3,228 AUD
$2,260 USD
View
Price under review
9 more retailers have this diamond
Prices start from $1,251 AUDSave up to $1,079 AUD

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
1.22ct Round
$1,251 AUD