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1.67ct J SI1 Round Lab Grown Diamond

EX • J/SI1 • IGI LG445036209

Shape and cutting style on the report: Round brilliant

Certificate IGI LG445036209

Diamond specifications and retailer prices

From $1,686 NZD
$950 USD
As of October 30, 2026
Save $6,886 NZD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $8,572 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445036209 or 445036209. Listed at 11 retailers as of October 29, 2026, with prices from $1,686 to $8,572, a $6,886 spread on the same certified stone. MOH London lists it at $8,572. 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 angle32.1°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445036209
Dimensions7.65 × 7.60 × 4.72 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.65 mm7.60 mm1.67 ctJ / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445036209
Side View
Table 56.5%Crown 32.1°Girdle: MED-STKPavilion 41.6°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 30
Current: $8,572 NZD|Low: $1,686 NZD|High: $8,642 NZD|Avg: $3,967 NZD|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 2$1,686 NZD
Retailer 5$2,287 NZD
Retailer 8$2,560 NZD
Retailer 6$2,654 NZD
Retailer 9$2,654 NZD
Retailer 10$2,963 NZD
Retailer 4$3,082 NZD
Retailer 12$3,673 NZD
Retailer 7$4,202 NZD
Retailer 11$4,947 NZD
Retailer 3$7,594 NZD
MOH London$8,572 NZD

15 data points across 12 retailers

11 retailers$1,686 NZD to $8,572 NZD

A
Cheapest Retailer
-
$1,686 NZD
$950 USD
B+
Retailer 2
-
$2,287 NZD
$1,289 USD
View
B+
Retailer 3
-
$2,489 NZD
$1,403 USD
View
B+
Retailer 4
-
$2,560 NZD
$1,443 USD
View
Final sale: no returns
Retailer 5
-
$2,654 NZD
$1,496 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$2,654 NZD
$1,496 USD
View
B+
Retailer 7
-
$2,963 NZD
$1,670 USD
View
B
Retailer 8
-
$4,202 NZD
$2,368 USD
View
B
Retailer 9
-
$4,947 NZD
$2,788 USD
View
B
Retailer 10
-
$4,975 NZD
$2,804 USD
View
Most Expensive
B
MOH London
LG445036209 · Oct 29
$8,572 NZD
£3,804 GBP
View
10 more retailers have this diamond
Prices start from $1,686 NZDSave up to $6,886 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
$1,686 NZD