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Round|Lab Grown|IGI

12.07ct G SI1 Round Lab Grown Diamond

ID • G/SI1

Diamond specifications and retailer prices

From $4,382 AUD
$3,078 USD
As of November 1, 2026
Save $16,238 AUD (79%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $20,619 AUD at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 12.07ct lab-grown round diamond

This 12.07ct lab-grown round sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI. Listed at 4 retailers as of November 1, 2026, with prices from $4,382 to $20,619, a $16,238 spread on the same certified stone. The Diamond Guys lists it at $20,619. 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

12.07
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions14.89 × 14.96 × 8.87 mm
L/W Ratio1.00
Top View
14.89 mm14.96 mm12.07 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 60.0%CrownGirdle: THN-MEDPavilionCulet: NoneDepth 59.4%

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 1
Current: $5,846 AUD|Low: $3,491 AUD|High: $20,619 AUD|Avg: $9,174 AUD|+2.3%
Retailer 1
Retailer 2
Retailer 3
The Diamond Guys
October 30, 2026
Retailer 2$4,382 AUD
Retailer 1$5,846 AUD
Retailer 3$7,944 AUD
The Diamond Guys$20,619 AUD

6 data points across 4 retailers

4 retailers$4,382 AUD to $20,619 AUD

B+
Cheapest Retailer
-
$4,382 AUD
$3,078 USD
B
Retailer 2
-
$5,846 AUD
CA$5,704 CAD
View
Retailer 3
-
$7,944 AUD
$5,580 USD
View
Price last confirmed 7 days ago
Most Expensive
C
The Diamond Guys
1992504680 · Nov 1
$20,619 AUD
$14,484 USD
View
3 more retailers have this diamond
Prices start from $4,382 AUDSave up to $16,238 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+
12.07ct Round
$4,382 AUD