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Round|Lab Grown|IGI

1.12ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG487173757

Shape and cutting style on the report: Round brilliant

Certificate IGI LG487173757

Diamond specifications and retailer prices

From $814 AUD
As of November 5, 2026
Save $1,251 AUD (61%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $3,596 AUD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.12ct lab-grown round diamond

This 1.12ct 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 LG487173757 or 487173757. Listed at 12 retailers as of November 4, 2026, with a 154% 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

1.12
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG487173757
Dimensions6.67 × 6.63 × 4.15 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
6.67 mm6.63 mm1.12 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG487173757
Side View
Table 55.5%Crown 36.1°Girdle: MediumPavilion 40.5°Culet: NoneDepth 62.4%

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 5
Current: $1,933 AUD|Low: $814 AUD|High: $4,858 AUD|Avg: $2,001 AUD|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 3$814 AUD
Retailer 5$1,103 AUD
Retailer 8$1,234 AUD
Retailer 6$1,279 AUD
Retailer 9$1,528 AUD
Retailer 1$1,933 AUD
Retailer 7$2,066 AUD
Retailer 4$3,041 AUD
Retailer 2$4,780 AUD

41 data points across 9 retailers

12 retailers$814 AUD to $2,066 AUD

B+
Cheapest Retailer
-
$814 AUD
B
Retailer 2
-
$1,103 AUD
View
B
Retailer 3
-
$1,200 AUD
View
B
Retailer 4
-
$1,234 AUD
View
Final sale: no returns
Retailer 5
-
$1,279 AUD
View
Price last confirmed 25 days ago
B
Retailer 6
-
$1,279 AUD
View
B
Retailer 7
-
$1,528 AUD
View
B
Retailer 8
-
$1,933 AUD
View
B
Retailer 9
-
$2,066 AUD
View
Retailer 10
-
$3,041 AUD
View
Price under review
Most Expensive
NZ Jewellers
efe87a5a-c940-4b09-8840-23d38f45134d · Nov 5
$3,596 AUD
$2,517 USD
View
Price under review
10 more retailers have this diamond
Prices start from $814 AUDSave up to $1,251 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+
1.12ct Round
$814 AUD