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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 $351 NZD
$197 USD
As of October 29, 2026
Save $1,693 NZD (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,044 NZD 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 $351 to $2,044, a $1,693 spread on the same certified stone. MOH London lists it at $2,044. 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
Colour
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: $2,044 NZD|Low: $328 NZD|High: $2,044 NZD|Avg: $959 NZD
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 29, 2026
Retailer 7$328 NZD
Retailer 15$351 NZD
Retailer 13$406 NZD
Retailer 12$434 NZD
Retailer 9$729 NZD
Retailer 8$755 NZD
Retailer 14$758 NZD
Retailer 2$793 NZD
Retailer 11$887 NZD
Retailer 3$904 NZD
Retailer 5$1,111 NZD
Retailer 4$1,309 NZD
Retailer 10$1,398 NZD
Retailer 6$1,709 NZD
MOH London$2,044 NZD

16 data points across 15 retailers

14 retailers$351 NZD to $2,044 NZD

A
Cheapest Retailer
-
$351 NZD
$197 USD
A
Retailer 2
-
$406 NZD
$228 USD
View
A
Retailer 3
-
$434 NZD
$244 USD
View
A
Retailer 4
-
$729 NZD
€390 EUR
View
A
Retailer 5
-
$755 NZD
£334 GBP
View
B+
Retailer 6
-
$758 NZD
$426 USD
View
A
Retailer 7
-
$793 NZD
£351 GBP
View
A
Retailer 8
-
$887 NZD
$498 USD
View
A
Retailer 9
-
$904 NZD
$508 USD
View
B+
Retailer 10
-
$1,111 NZD
$624 USD
View
B+
Retailer 11
-
$1,309 NZD
$735 USD
View
Price last confirmed 11 days ago
B+
Retailer 12
-
$1,398 NZD
$785 USD
View
B
Retailer 13
-
$1,709 NZD
$960 USD
View
Most Expensive
B
MOH London
LG669420558 · Oct 29
$2,044 NZD
£904 GBP
View
13 more retailers have this diamond
Prices start from $351 NZDSave up to $1,693 NZD

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
$351 NZD