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Round|Lab Grown|IGI

1.67ct G SI1 Round Lab Grown Diamond

VG • G/SI1 • IGI LG754510366

Shape and cutting style on the report: Round brilliant

Certificate IGI LG754510366

Diamond specifications and retailer prices

From $354 NZD
$199 USD
As of November 1, 2026
Save $2,366 NZD (87%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,719 NZD at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG754510366 or 754510366. Listed at 14 retailers as of November 1, 2026, with prices from $354 to $2,719, a $2,366 spread on the same certified stone. Brilliant Earth lists it at $2,719. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.67
Carat
G
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754510366
Dimensions7.52 × 7.44 × 4.76 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
7.52 mm7.44 mm1.67 ctG / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754510366
Side View
Table 58.0%Crown 34.1°Girdle: STK-THKPavilion 41.7°Culet: NoneDepth 63.6%

Caratlytics Score

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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: Nov 1
Current: $2,719 NZD|Low: $339 NZD|High: $2,719 NZD|Avg: $870 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 3, 2026
Retailer 6$354 NZD
Retailer 13$411 NZD
Retailer 8$439 NZD
Retailer 5$444 NZD
Retailer 4$746 NZD
Retailer 3$766 NZD
Retailer 2$803 NZD
Retailer 12$906 NZD
Retailer 11$958 NZD
Retailer 9$1,413 NZD
Retailer 10$1,418 NZD
Retailer 7$2,056 NZD
Brilliant Earth$2,719 NZD

42 data points across 13 retailers

14 retailers$354 NZD to $2,719 NZD

A
Cheapest Retailer
-
$354 NZD
$199 USD
A
Retailer 2
-
$411 NZD
$231 USD
View
A
Retailer 3
-
$439 NZD
$247 USD
View
Retailer 4
-
$444 NZD
$250 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$746 NZD
€400 EUR
View
B+
Retailer 6
-
$766 NZD
$431 USD
View
B+
Retailer 7
-
$803 NZD
£356 GBP
View
B+
Retailer 8
-
$906 NZD
$510 USD
View
B+
Retailer 9
-
$958 NZD
$539 USD
View
B+
Retailer 10
-
$1,333 NZD
$750 USD
View
B
Retailer 11
-
$1,413 NZD
$795 USD
View
B+
Retailer 12
-
$1,418 NZD
$798 USD
View
B
Retailer 13
-
$2,056 NZD
£911 GBP
View
Most Expensive
B
Brilliant Earth
18038583A · Nov 1
$2,719 NZD
$1,530 USD
View
13 more retailers have this diamond
Prices start from $354 NZDSave up to $2,366 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