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Round|Lab Grown|IGI

10.09ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG627422142

Shape and cutting style on the report: Round brilliant

Certificate IGI LG627422142

Diamond specifications and retailer prices

From $2,865 AUD
$2,008 USD
As of November 1, 2026
Save $15,328 AUD (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $18,193 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 10.09ct lab-grown round diamond

This 10.09ct 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 LG627422142 or 627422142. Listed at 17 retailers as of November 1, 2026, with prices from $2,865 to $18,193, a $15,328 spread on the same certified stone. Brilliant Earth lists it at $18,193. 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

10.09
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627422142
Dimensions13.85 × 13.77 × 8.51 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
13.85 mm13.77 mm10.09 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627422142
Side View
Table 57.0%Crown 35.6°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.6%

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: $18,193 AUD|Low: $2,750 AUD|High: $18,193 AUD|Avg: $5,250 AUD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 12$2,865 AUD
Retailer 8$2,965 AUD
Retailer 11$3,116 AUD
Retailer 5$3,208 AUD
Retailer 13$3,323 AUD
Retailer 3$3,560 AUD
Retailer 7$4,020 AUD
Retailer 10$4,516 AUD
Retailer 15$4,568 AUD
Retailer 2$4,916 AUD
Retailer 4$5,200 AUD
Retailer 9$5,274 AUD
Retailer 6$9,472 AUD
Retailer 14$10,164 AUD
Brilliant Earth$18,193 AUD

42 data points across 15 retailers

17 retailers$2,865 AUD to $18,193 AUD

A
Cheapest Retailer
-
$2,865 AUD
$2,008 USD
A
Retailer 2
-
$2,965 AUD
£1,636 GBP
View
A
Retailer 3
-
$3,116 AUD
$2,184 USD
View
A
Retailer 4
-
$3,208 AUD
$2,248 USD
View
Final sale: no returns
Retailer 5
-
$3,323 AUD
$2,329 USD
View
Price last confirmed 22 days ago
A
Retailer 6
-
$3,323 AUD
$2,329 USD
View
A
Retailer 7
-
$3,560 AUD
$2,495 USD
View
A
Retailer 8
-
$4,020 AUD
$2,817 USD
View
B+
Retailer 9
-
$4,516 AUD
£2,492 GBP
View
B+
Retailer 10
-
$4,568 AUD
$3,201 USD
View
B+
Retailer 11
-
$4,916 AUD
$3,445 USD
View
B+
Retailer 12
-
$5,200 AUD
$3,644 USD
View
B+
Retailer 13
-
$5,274 AUD
€3,520 EUR
View
B
Retailer 14
-
$9,472 AUD
$6,638 USD
View
B
Retailer 15
-
$10,164 AUD
$7,123 USD
View
B
Retailer 16
-
$11,629 AUD
$8,150 USD
View
Most Expensive
B
Brilliant Earth
20602725A · Nov 2
$18,193 AUD
$12,750 USD
View
16 more retailers have this diamond
Prices start from $2,865 AUDSave up to $15,328 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.

A
10.09ct Round
$2,865 AUD