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1.67ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG257739787

Shape and cutting style on the report: Round brilliant

Certificate IGI LG257739787

Diamond specifications and retailer prices

From $1,082 NZD
$609 USD
As of November 1, 2026
1 retailer carries this diamond
Only listing: $1,082 NZD at B2C Jewels
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at B2C Jewels

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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG257739787 or 257739787. Listed at a single retailer as of November 1, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG257739787
Dimensions7.65 × 7.59 × 4.71 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
IDEAL CUT ROUND BRILLIANTThe laboratory grown diamond described above is classified as Type IIa. Laserscribe on Girdle: "LAB GROWN LG 257739787"
Top View
7.65 mm7.59 mm1.67 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG257739787
Side View
Table 57.5%Crown 35°Girdle: MediumPavilion 41°Culet: NoneDepth 61.9%

Caratlytics Score

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B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: $1,082 NZD|Low: $906 NZD|High: $2,303 NZD|Avg: $1,564 NZD|-12.9%
B2C Jewels
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
September 23, 2026
Retailer 8$906 NZD
Retailer 4$986 NZD
B2C Jewels$1,082 NZD
Retailer 5$1,182 NZD
Retailer 3$1,484 NZD
Retailer 6$1,492 NZD
Retailer 7$1,867 NZD
Retailer 2$2,303 NZD

40 data points across 8 retailers

1 retailer

B+
B2C Jewels
21633421 · Nov 1
$1,082 NZD
$609 USD
View

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B+
1.67ct Round
$1,082 NZD