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Round|Lab Grown|IGI

1.74ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG668409277

Shape and cutting style on the report: Round brilliant

Certificate IGI LG668409277

Diamond specifications and retailer prices

From €199 EUR
$222 USD
As of October 29, 2026
Save €1,130 EUR (85%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,330 EUR at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.74ct lab-grown round diamond

This 1.74ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG668409277 or 668409277. Listed at 14 retailers as of October 29, 2026, with prices from €199 to €1,330, a €1,130 spread on the same certified stone. Brilliant Earth lists it at €1,330. 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

1.74
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG668409277
Dimensions7.81 × 7.74 × 4.72 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.81 mm7.74 mm1.74 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG668409277
Side View
Table 59.0%Crown 33.3°Girdle: MediumPavilion 41.2°Culet: NoneDepth 60.8%

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: Oct 29
Current: €1,330 EUR|Low: €187 EUR|High: €1,330 EUR|Avg: €490 EUR|+11.3%
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
October 30, 2026
Retailer 13€199 EUR
Retailer 6€218 EUR
Retailer 10€232 EUR
Retailer 5€248 EUR
Retailer 9€248 EUR
Retailer 11€423 EUR
Retailer 7€445 EUR
Retailer 2€454 EUR
Retailer 3€483 EUR
Retailer 14€487 EUR
Retailer 4€797 EUR
Retailer 12€800 EUR
Retailer 8€994 EUR
Brilliant Earth€1,330 EUR

43 data points across 14 retailers

14 retailers€199 EUR to €1,330 EUR

A
Cheapest Retailer
-
€199 EUR
$222 USD
A
Retailer 2
-
€218 EUR
$243 USD
View
Final sale: no returns
A
Retailer 3
-
€232 EUR
$258 USD
View
A
Retailer 4
-
€248 EUR
$276 USD
View
A
Retailer 5
-
€248 EUR
$276 USD
View
B+
Retailer 6
-
€423 EUR
$471 USD
View
A
Retailer 7
-
€445 EUR
View
A
Retailer 8
-
€454 EUR
£398 GBP
View
A
Retailer 9
-
€483 EUR
$538 USD
View
A
Retailer 10
-
€487 EUR
$542 USD
View
B
Retailer 11
-
€797 EUR
$887 USD
View
B+
Retailer 12
-
€800 EUR
$890 USD
View
B
Retailer 13
-
€994 EUR
£871 GBP
View
Most Expensive
B
Brilliant Earth
13161355A · Oct 29
€1,330 EUR
$1,480 USD
View
13 more retailers have this diamond
Prices start from €199 EURSave up to €1,130 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
1.74ct Round
€199 EUR