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Round|Lab Grown|IGI

10.39ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG623420092

Shape and cutting style on the report: Round brilliant

Certificate IGI LG623420092

Diamond specifications and retailer prices

From €1,850 EUR
$2,067 USD
As of October 29, 2026
Save €9,902 EUR (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €11,753 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 10.39ct lab-grown round diamond

This 10.39ct 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 LG623420092 or 623420092. Listed at 18 retailers as of October 29, 2026, with prices from €1,850 to €11,753, a €9,902 spread on the same certified stone. Brilliant Earth lists it at €11,753. 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

10.39
Carat
G
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG623420092
Dimensions14.20 × 14.16 × 8.42 mm
L/W Ratio1.00
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
14.20 mm14.16 mm10.39 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG623420092
Side View
Table 58.0%Crown 32.5°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 59.4%

Caratlytics Score

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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: Oct 29
Current: €11,753 EUR|Low: €1,776 EUR|High: €11,753 EUR|Avg: €3,227 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
Retailer 16
October 31, 2026
Retailer 12€1,850 EUR
Retailer 11€1,921 EUR
Retailer 10€2,012 EUR
Retailer 5€2,071 EUR
Retailer 8€2,146 EUR
Retailer 13€2,146 EUR
Retailer 4€2,296 EUR
Retailer 7€2,588 EUR
Retailer 9€2,941 EUR
Retailer 15€2,949 EUR
Retailer 16€3,130 EUR
Retailer 3€3,355 EUR
Retailer 2€3,393 EUR
Retailer 6€6,102 EUR
Retailer 14€6,742 EUR
Brilliant Earth€11,753 EUR

42 data points across 16 retailers

18 retailers€1,850 EUR to €11,753 EUR

A
Cheapest Retailer
-
€1,850 EUR
$2,067 USD
A
Retailer 2
-
€1,921 EUR
£1,690 GBP
View
A
Retailer 3
-
€2,012 EUR
$2,248 USD
View
A
Retailer 4
-
€2,071 EUR
$2,314 USD
View
Final sale: no returns
Retailer 5
-
€2,146 EUR
$2,397 USD
View
Price last confirmed 21 days ago
A
Retailer 6
-
€2,146 EUR
$2,397 USD
View
A
Retailer 7
-
€2,296 EUR
$2,565 USD
View
A
Retailer 8
-
€2,588 EUR
$2,891 USD
View
B+
Retailer 9
-
€2,941 EUR
£2,587 GBP
View
B+
Retailer 10
-
€2,949 EUR
$3,295 USD
View
B+
Retailer 11
-
€3,130 EUR
$3,497 USD
View
Retailer 12
-
€3,355 EUR
$3,748 USD
View
Price last confirmed 14 days ago
B+
Retailer 13
-
€3,393 EUR
View
Retailer 14
-
€5,576 EUR
$6,229 USD
View
Price last confirmed 39 days ago
B
Retailer 15
-
€6,102 EUR
$6,817 USD
View
B
Retailer 16
-
€6,742 EUR
$7,532 USD
View
B
Retailer 17
-
€7,506 EUR
$8,385 USD
View
Most Expensive
B
Brilliant Earth
20602535A · Oct 31
€11,753 EUR
$13,130 USD
View
17 more retailers have this diamond
Prices start from €1,850 EURSave up to €9,902 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
10.39ct Round
€1,850 EUR