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Marquise|Lab Grown|IGI

1.67ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG677520630

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG677520630

Diamond specifications and retailer prices

From $2,826 NZD
$1,593 USD
As of October 31, 2026
Save $2,887 NZD (51%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $5,713 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.67ct lab-grown marquise diamond

This 1.67ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG677520630 or 677520630. Listed at 3 retailers as of October 31, 2026, with prices from $2,826 to $5,713, a $2,887 spread on the same certified stone. Brilliant Earth lists it at $5,713. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.67
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG677520630
Dimensions11.87 × 6.07 × 3.90 mm
L/W Ratio1.96
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
11.87 mm6.07 mm1.67 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG677520630
Side View
Table 63.0%Crown 36.9°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
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: Oct 31
Current: $5,713 NZD|Low: $2,630 NZD|High: $7,739 NZD|Avg: $5,949 NZD|-24.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
October 31, 2026
Retailer 2$2,826 NZD
Retailer 3$4,941 NZD
Brilliant Earth$5,713 NZD
Retailer 4$7,064 NZD
Retailer 5$7,739 NZD

11 data points across 5 retailers

3 retailers$2,826 NZD to $5,713 NZD

A
Cheapest Retailer
-
$2,826 NZD
$1,593 USD
B+
Retailer 2
-
$4,941 NZD
$2,785 USD
View
Most Expensive
B
Brilliant Earth
21403561Y · Oct 31
$5,713 NZD
$3,220 USD
View
2 more retailers have this diamond
Prices start from $2,826 NZDSave up to $2,887 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 Marquise
$2,826 NZD