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Round|Lab Grown|IGI

1.67ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG515228758

Shape and cutting style on the report: Round brilliant

Certificate IGI LG515228758

Diamond specifications and retailer prices

From $570 NZD
$320 USD
As of October 29, 2026
Save $2,494 NZD (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,057 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 LG515228758 or 515228758. Listed at 18 retailers as of October 29, 2026, with a 438% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle35.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG515228758
Dimensions7.65 × 7.60 × 4.71 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.65 mm7.60 mm1.67 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG515228758
Side View
Table 58.0%Crown 35.4°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 61.8%

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: $5,057 NZD|Low: $570 NZD|High: $5,057 NZD|Avg: $1,736 NZD
Do Amore Diamonds
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
Retailer 16
Retailer 17
Retailer 18
October 29, 2026
Retailer 15$570 NZD
Retailer 14$661 NZD
Retailer 13$707 NZD
Retailer 18$707 NZD
Retailer 16$739 NZD
Retailer 9$922 NZD
Retailer 4$979 NZD
Retailer 5$1,273 NZD
Retailer 12$1,353 NZD
Retailer 2$1,395 NZD
Retailer 7$1,465 NZD
Retailer 10$1,591 NZD
Retailer 3$2,073 NZD
Retailer 17$2,507 NZD
Retailer 6$2,569 NZD
Retailer 8$2,788 NZD
Retailer 11$3,064 NZD
Do Amore Diamonds$5,057 NZD

13 data points across 18 retailers

18 retailers$570 NZD to $3,064 NZD

A
Cheapest Retailer
-
$570 NZD
$320 USD
A
Retailer 2
-
$661 NZD
$371 USD
View
A
Retailer 3
-
$707 NZD
$397 USD
View
A
Retailer 4
-
$707 NZD
$397 USD
View
A
Retailer 5
-
$739 NZD
$415 USD
View
A
Retailer 6
-
$922 NZD
$518 USD
View
A
Retailer 7
-
$979 NZD
$550 USD
View
B+
Retailer 8
-
$1,273 NZD
$715 USD
View
B+
Retailer 9
-
$1,353 NZD
£598 GBP
View
B+
Retailer 10
-
$1,395 NZD
£617 GBP
View
B+
Retailer 11
-
$1,465 NZD
$823 USD
View
B+
Retailer 12
-
$1,591 NZD
$894 USD
View
B
Retailer 13
-
$2,073 NZD
$1,164 USD
View
B
Retailer 14
-
$2,507 NZD
$1,408 USD
View
B
Retailer 15
-
$2,569 NZD
$1,443 USD
View
B
Retailer 16
-
$2,788 NZD
$1,566 USD
View
B
Retailer 17
-
$3,064 NZD
£1,355 GBP
View
Most Expensive
B
Do Amore Diamonds
27-508475D7A · Oct 29
$5,057 NZD
$2,840 USD
View
Price under review
17 more retailers have this diamond
Prices start from $570 NZDSave up to $2,494 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
$570 NZD