CaratHunter
Plans
Oval|Lab Grown|IGI

1.00ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG512220539

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG512220539

Diamond specifications and retailer prices

From €539 EUR
$602 USD
As of October 29, 2026
Save €1,118 EUR (67%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €1,756 EUR at NZ Jewellers · As of October 31, 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 LG512220539 or 512220539. Listed at 12 retailers as of October 29, 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
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG512220539
Dimensions7.98 × 5.53 × 3.44 mm
L/W Ratio1.44
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
7.98 mm5.53 mm1.00 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG512220539
Side View
Table 64.5%Crown 36.4°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.2%

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: Oct 29
Current: €1,045 EUR|Low: €430 EUR|High: €2,934 EUR|Avg: €1,038 EUR|+2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 7€539 EUR
Retailer 10€602 EUR
Retailer 2€668 EUR
Retailer 8€668 EUR
Retailer 3€752 EUR
Retailer 5€783 EUR
Retailer 9€1,024 EUR
Retailer 1€1,045 EUR
Retailer 6€1,657 EUR
Retailer 4€2,915 EUR

42 data points across 10 retailers

12 retailers€539 EUR to €1,657 EUR

B+
Cheapest Retailer
-
€539 EUR
$602 USD
B+
Retailer 2
-
€602 EUR
$673 USD
View
Final sale: no returns
B+
Retailer 3
-
€603 EUR
$674 USD
View
Retailer 4
-
€668 EUR
$746 USD
View
Price last confirmed 15 days ago
B
Retailer 5
-
€668 EUR
$746 USD
View
B
Retailer 6
-
€752 EUR
$840 USD
View
B
Retailer 7
-
€783 EUR
$875 USD
View
B
Retailer 8
-
€1,024 EUR
$1,144 USD
View
B
Retailer 9
-
€1,045 EUR
£919 GBP
View
B
Retailer 10
-
€1,657 EUR
$1,851 USD
View
Most Expensive
NZ Jewellers
3e00e0bf-0ea7-4a0c-ac1c-88c684236d0d · Oct 31
€1,756 EUR
$1,962 USD
View
Price under review
10 more retailers have this diamond
Prices start from €539 EURSave up to €1,118 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