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Oval|Lab Grown|IGI

1.00ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG508156211

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG508156211

Diamond specifications and retailer prices

From €539 EUR
As of November 5, 2026
Save €1,119 EUR (67%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €1,757 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

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 LG508156211 or 508156211. Listed at 12 retailers as of November 4, 2026, with a 207% 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
SymmetryVery Good
FluorescenceNone
Crown angle41.3°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG508156211
Dimensions7.89 × 5.45 × 3.42 mm
L/W Ratio1.45
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
7.89 mm5.45 mm1.00 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG508156211
Side View
Table 59.5%Crown 41.3°Girdle: MED-STKPavilion 37.8°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: €1,034 EUR|Low: €539 EUR|High: €2,935 EUR|Avg: €1,161 EUR|+1.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 6, 2026
Retailer 6€539 EUR
Retailer 8€603 EUR
Retailer 3€752 EUR
Retailer 4€784 EUR
Retailer 7€1,025 EUR
Retailer 1€1,034 EUR
Retailer 5€1,658 EUR
Retailer 2€2,892 EUR

42 data points across 8 retailers

12 retailers€539 EUR to €1,658 EUR

B+
Cheapest Retailer
-
€539 EUR
B+
Retailer 2
-
€603 EUR
View
Final sale: no returns
B+
Retailer 3
-
€604 EUR
View
Retailer 4
-
€668 EUR
View
Price last confirmed 21 days ago
B
Retailer 5
-
€668 EUR
View
B
Retailer 6
-
€752 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
Most Expensive
NZ Jewellers
e73373b2-4bad-45ae-a88d-4df4b7d2da15 · Nov 5
€1,757 EUR
$1,962 USD
View
Price under review
10 more retailers have this diamond
Prices start from €539 EURSave up to €1,119 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.

B+
1.00ct Oval
€539 EUR