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Round|Lab Grown|IGI

3.10ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG629431039

Shape and cutting style on the report: Round brilliant

Certificate IGI LG629431039

Diamond specifications and retailer prices

From $1,762 AUD
CA$1,719 CAD
As of October 30, 2026
Save $568 AUD (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $2,330 AUD at The Diamond Guys · As of November 1, 2026
View at The Diamond Guys

About this 3.1ct lab-grown round diamond

This 3.1ct lab-grown round sits in the three to five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG629431039 or 629431039. Listed at 2 retailers as of October 30, 2026, with prices from $1,762 to $2,330, a $568 spread on the same certified stone. The Diamond Guys lists it at $2,330. 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

3.10
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG629431039
Dimensions9.22 × 9.16 × 5.82 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
9.22 mm9.16 mm3.10 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG629431039
Side View
Table 56.0%Crown 36.3°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.3%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $769 AUD|Low: $353 AUD|High: $4,285 AUD|Avg: $1,966 AUD|-38.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
The Diamond Guys
August 9, 2026
Retailer 9$364 AUD
Retailer 1$769 AUD
Retailer 8$780 AUD
Retailer 5$954 AUD
Retailer 12$1,092 AUD
Retailer 2$1,170 AUD
Retailer 7$1,419 AUD
Retailer 10$1,495 AUD
Retailer 6$1,540 AUD
Retailer 13$1,762 AUD
The Diamond Guys$2,330 AUD
Retailer 4$2,675 AUD
Retailer 11$3,189 AUD
Retailer 3$3,659 AUD

63 data points across 14 retailers

2 retailers$1,762 AUD to $2,330 AUD

B+
Cheapest Retailer
-
$1,762 AUD
CA$1,719 CAD
Most Expensive
B
The Diamond Guys
1954434480 · Nov 1
$2,330 AUD
$1,637 USD
View
1 more retailer has this diamond
Prices start from $1,762 AUDSave up to $568 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+
3.10ct Round
$1,762 AUD