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Oval|Lab Grown|IGI

1.00ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG512220518

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG512220518

Diamond specifications and retailer prices

From €457 EUR
As of November 6, 2026
Save €1,201 EUR (72%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €2,041 EUR at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1ct lab-grown oval diamond

This 1ct lab-grown oval sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG512220518 or 512220518. Listed at 13 retailers as of November 4, 2026, with a 263% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512220518
Dimensions8.35 × 5.41 × 3.47 mm
L/W Ratio1.54
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
8.35 mm5.41 mm1.00 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512220518
Side View
Table 57.0%Crown 36.9°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 64.1%

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 6
Current: €1,034 EUR|Low: €457 EUR|High: €2,935 EUR|Avg: €1,049 EUR|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4€457 EUR
Retailer 7€539 EUR
Retailer 10€603 EUR
Retailer 2€668 EUR
Retailer 8€668 EUR
Retailer 5€784 EUR
Retailer 9€1,025 EUR
Retailer 1€1,034 EUR
Retailer 6€1,658 EUR
Retailer 3€2,900 EUR

44 data points across 10 retailers

13 retailers€457 EUR to €1,658 EUR

A
Cheapest Retailer
-
€457 EUR
B+
Retailer 2
-
€539 EUR
View
B
Retailer 3
-
€603 EUR
View
Final sale: no returns
B
Retailer 4
-
€604 EUR
View
Retailer 5
-
€668 EUR
View
Price last confirmed 21 days ago
B+
Retailer 6
-
€668 EUR
View
B
Retailer 7
-
€784 EUR
View
B
Retailer 8
-
€1,025 EUR
View
B
Retailer 9
-
€1,034 EUR
View
B
Retailer 10
-
€1,658 EUR
View
Retailer 11
-
€1,757 EUR
View
Price under review
Most Expensive
Reve Diamonds
4058D2BF4 · Nov 6
€2,041 EUR
$2,279 USD
View
Price under review
11 more retailers have this diamond
Prices start from €457 EURSave up to €1,201 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
1.00ct Oval
€457 EUR