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1.67ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG640460139

Shape and cutting style on the report: Round brilliant

Certificate IGI LG640460139

Diamond specifications and retailer prices

From $354 NZD
$199 USD
As of October 29, 2026
Save $3,046 NZD (90%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $3,401 NZD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 LG640460139 or 640460139. Listed at 11 retailers as of October 29, 2026, with prices from $354 to $3,401, a $3,046 spread on the same certified stone. Do Amore Diamonds lists it at $3,401. 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 angle35.7°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640460139
Dimensions7.62 × 7.57 × 4.68 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 mm7.57 mm1.67 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640460139
Side View
Table 59.0%Crown 35.7°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 61.5%

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 29
Current: $3,401 NZD|Low: $344 NZD|High: $3,525 NZD|Avg: $1,304 NZD|-3.5%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 10$354 NZD
Retailer 3$401 NZD
Retailer 8$411 NZD
Retailer 7$762 NZD
Retailer 4$841 NZD
Retailer 9$1,352 NZD
Retailer 5$1,417 NZD
Retailer 6$1,558 NZD
Retailer 11$1,691 NZD
Retailer 2$1,954 NZD
Do Amore Diamonds$3,401 NZD

39 data points across 11 retailers

11 retailers$354 NZD to $3,401 NZD

A
Cheapest Retailer
-
$354 NZD
$199 USD
A
Retailer 2
-
$401 NZD
$225 USD
View
Final sale: no returns
A
Retailer 3
-
$411 NZD
$231 USD
View
B+
Retailer 4
-
$762 NZD
$428 USD
View
A
Retailer 5
-
$841 NZD
£372 GBP
View
B+
Retailer 6
-
$1,352 NZD
$759 USD
View
B+
Retailer 7
-
$1,417 NZD
$796 USD
View
B+
Retailer 8
-
$1,558 NZD
$875 USD
View
B
Retailer 9
-
$1,691 NZD
$950 USD
View
B
Retailer 10
-
$1,954 NZD
£864 GBP
View
Most Expensive
B
Do Amore Diamonds
27-B309E0F87 · Oct 29
$3,401 NZD
$1,910 USD
View
10 more retailers have this diamond
Prices start from $354 NZDSave up to $3,046 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
$354 NZD