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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 €1,797 EUR
$2,008 USD
As of November 1, 2026
Save €9,615 EUR (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €11,412 EUR at Brilliant Earth · As of October 31, 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 October 31, 2026, with prices from €1,797 to €11,412, a €9,615 spread on the same certified stone. Brilliant Earth lists it at €11,412. 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
Color
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

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: €11,412 EUR|Low: €1,725 EUR|High: €11,412 EUR|Avg: €3,292 EUR
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 11€1,797 EUR
Retailer 8€1,860 EUR
Retailer 10€1,955 EUR
Retailer 5€2,012 EUR
Retailer 12€2,085 EUR
Retailer 15€2,233 EUR
Retailer 7€2,521 EUR
Retailer 2€2,833 EUR
Retailer 14€2,865 EUR
Retailer 3€3,116 EUR
Retailer 4€3,262 EUR
Retailer 9€3,295 EUR
Retailer 6€5,942 EUR
Retailer 13€6,376 EUR
Brilliant Earth€11,412 EUR

43 data points across 15 retailers

17 retailers€1,797 EUR to €11,412 EUR

A
Cheapest Retailer
-
€1,797 EUR
$2,008 USD
A
Retailer 2
-
€1,860 EUR
£1,637 GBP
View
A
Retailer 3
-
€1,955 EUR
$2,184 USD
View
A
Retailer 4
-
€2,012 EUR
$2,248 USD
View
Final sale: no returns
Retailer 5
-
€2,085 EUR
$2,329 USD
View
Price last confirmed 22 days ago
A
Retailer 6
-
€2,085 EUR
$2,329 USD
View
A
Retailer 7
-
€2,233 EUR
$2,495 USD
View
A
Retailer 8
-
€2,521 EUR
$2,817 USD
View
B+
Retailer 9
-
€2,833 EUR
£2,492 GBP
View
B+
Retailer 10
-
€2,865 EUR
$3,201 USD
View
B+
Retailer 11
-
€3,116 EUR
$3,481 USD
View
B+
Retailer 12
-
€3,262 EUR
$3,644 USD
View
B+
Retailer 13
-
€3,295 EUR
View
B
Retailer 14
-
€5,942 EUR
$6,638 USD
View
B
Retailer 15
-
€6,376 EUR
$7,123 USD
View
B
Retailer 16
-
€7,295 EUR
$8,150 USD
View
Most Expensive
B
Brilliant Earth
20602725A · Oct 31
€11,412 EUR
$12,750 USD
View
16 more retailers have this diamond
Prices start from €1,797 EURSave up to €9,615 EUR

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
€1,797 EUR