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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 $197 USD
As of October 29, 2026
Save $951 USD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,148 USD at MOH London · As of October 29, 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 $197 to $1,148, a $951 spread on the same certified stone. MOH London lists it at $1,148. 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
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,148 USD|Low: $184 USD|High: $1,148 USD|Avg: $537 USD
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
October 30, 2026
Retailer 7$184 USD
Retailer 15$197 USD
Retailer 13$228 USD
Retailer 12$244 USD
Retailer 9$410 USD
Retailer 8$424 USD
Retailer 14$426 USD
Retailer 2$445 USD
Retailer 11$498 USD
Retailer 3$508 USD
Retailer 5$624 USD
Retailer 4$735 USD
Retailer 10$785 USD
Retailer 6$960 USD
MOH London$1,148 USD

17 data points across 15 retailers

14 retailers$197 USD to $1,148 USD

A
Cheapest Retailer
-
$197 USD
A
Retailer 2
-
$228 USD
View
A
Retailer 3
-
$244 USD
View
A
Retailer 4
-
$410 USD
€390 EUR
View
A
Retailer 5
-
$424 USD
£334 GBP
View
B+
Retailer 6
-
$426 USD
View
A
Retailer 7
-
$445 USD
£351 GBP
View
A
Retailer 8
-
$498 USD
View
A
Retailer 9
-
$508 USD
View
B+
Retailer 10
-
$624 USD
View
Retailer 11
-
$735 USD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
$785 USD
View
B
Retailer 13
-
$960 USD
View
Most Expensive
B
MOH London
LG669420558 · Oct 29
$1,148 USD
£904 GBP
View
13 more retailers have this diamond
Prices start from $197 USDSave up to $951 USD

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
$197 USD