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Radiant|Lab Grown|IGI

1.15ct E SI1 Radiant Lab Grown Diamond

ID • E/SI1 • IGI LG574325826

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG574325826

Diamond specifications and retailer prices

From €134 EUR
$150 USD
As of October 30, 2026
Save €1,155 EUR (90%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €1,289 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.15ct lab-grown radiant diamond

This 1.15ct lab-grown radiant sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG574325826 or 574325826. Listed at 12 retailers as of October 30, 2026, with prices from €134 to €1,289, a €1,155 spread on the same certified stone. Do Amore Diamonds lists it at €1,289. 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

1.15
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.7°
Pavilion angle34.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG574325826
Dimensions7.39 × 5.14 × 3.42 mm
L/W Ratio1.44
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
7.39 mm5.14 mm1.15 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG574325826
Side View
Table 65.0%Crown 44.7°Girdle: MED-STKPavilion 34.6°Culet: NoneDepth 66.5%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €1,289 EUR|Low: €106 EUR|High: €1,289 EUR|Avg: €474 EUR|+1.4%
Do Amore Diamonds
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
October 30, 2026
Retailer 11€134 EUR
Retailer 15€150 EUR
Retailer 14€156 EUR
Retailer 2€238 EUR
Retailer 6€297 EUR
Retailer 13€306 EUR
Retailer 3€346 EUR
Retailer 7€423 EUR
Retailer 9€474 EUR
Retailer 10€564 EUR
Retailer 12€590 EUR
Retailer 4€615 EUR
Retailer 5€618 EUR
Retailer 8€858 EUR
Do Amore Diamonds€1,289 EUR

38 data points across 15 retailers

12 retailers€134 EUR to €1,289 EUR

A
Cheapest Retailer
-
€134 EUR
$150 USD
A
Retailer 2
-
€150 EUR
$168 USD
View
Final sale: no returns
A
Retailer 3
-
€156 EUR
$174 USD
View
A
Retailer 4
-
€238 EUR
£210 GBP
View
B+
Retailer 5
-
€306 EUR
$342 USD
View
Retailer 6
-
€412 EUR
$460 USD
View
Price last confirmed 10 days ago
Retailer 7
-
€419 EUR
$468 USD
View
Price last confirmed 52 days ago
Retailer 8
-
€474 EUR
$530 USD
View
Price last confirmed 10 days ago
B+
Retailer 9
-
€564 EUR
$630 USD
View
B+
Retailer 10
-
€590 EUR
$659 USD
View
B
Retailer 11
-
€858 EUR
£755 GBP
View
Most Expensive
B
Do Amore Diamonds
27-0866E438A · Oct 31
€1,289 EUR
$1,440 USD
View
11 more retailers have this diamond
Prices start from €134 EURSave up to €1,155 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
1.15ct Radiant
€134 EUR