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Round|Lab Grown|IGI

1.67ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG669420558

Shape and cutting style on the report: Round brilliant

Certificate IGI LG669420558

Diamond specifications and retailer prices

From €176 EUR
$197 USD
As of October 29, 2026
Save €846 EUR (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,022 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 1.67ct lab-grown round diamond

This 1.67ct 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 LG669420558 or 669420558. Listed at 14 retailers as of October 29, 2026, with prices from €176 to €1,022, a €846 spread on the same certified stone. MOH London lists it at €1,022. 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

1.67
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG669420558
Dimensions7.62 × 7.54 × 4.73 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
7.62 mm7.54 mm1.67 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG669420558
Side View
Table 56.0%Crown 33.7°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.3%

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 29
Current: €1,022 EUR|Low: €165 EUR|High: €1,028 EUR|Avg: €477 EUR|-0.6%
MOH London
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
November 1, 2026
Retailer 7€165 EUR
Retailer 15€176 EUR
Retailer 13€204 EUR
Retailer 12€218 EUR
Retailer 9€367 EUR
Retailer 2€377 EUR
Retailer 14€381 EUR
Retailer 8€399 EUR
Retailer 11€446 EUR
Retailer 3€455 EUR
Retailer 5€559 EUR
Retailer 4€658 EUR
Retailer 10€703 EUR
Retailer 6€859 EUR
MOH London€1,022 EUR

18 data points across 15 retailers

14 retailers€176 EUR to €1,022 EUR

A
Cheapest Retailer
-
€176 EUR
$197 USD
A
Retailer 2
-
€204 EUR
$228 USD
View
A
Retailer 3
-
€218 EUR
$244 USD
View
A
Retailer 4
-
€367 EUR
View
A
Retailer 5
-
€377 EUR
£332 GBP
View
B+
Retailer 6
-
€381 EUR
$426 USD
View
A
Retailer 7
-
€399 EUR
£351 GBP
View
A
Retailer 8
-
€446 EUR
$498 USD
View
A
Retailer 9
-
€455 EUR
$508 USD
View
B+
Retailer 10
-
€559 EUR
$624 USD
View
Retailer 11
-
€658 EUR
$735 USD
View
Price last confirmed 14 days ago
B+
Retailer 12
-
€703 EUR
$785 USD
View
B
Retailer 13
-
€859 EUR
$960 USD
View
Most Expensive
B
MOH London
LG669420558 · Nov 1
€1,022 EUR
£899 GBP
View
13 more retailers have this diamond
Prices start from €176 EURSave up to €846 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
1.67ct Round
€176 EUR