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Marquise|Lab Grown|IGI

1.78ct F VVS1 Marquise Lab Grown Diamond

EX • F/VVS1 • IGI LG837672261

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG837672261

Diamond specifications and retailer prices

From $2,170 NZD
$1,221 USD
As of November 2, 2026
Save $1,070 NZD (33%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $3,240 NZD at Frank Darling · As of November 3, 2026
View at Frank Darling

About this 1.78ct lab-grown marquise diamond

This 1.78ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG837672261 or 837672261. Listed at 3 retailers as of November 2, 2026, with prices from $2,170 to $3,240, a $1,070 spread on the same certified stone. Frank Darling lists it at $3,240. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
F
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG837672261
Dimensions12.67 × 6.14 × 4.01 mm
L/W Ratio2.06
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.67 mm6.14 mm1.78 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG837672261
Side View
Table 57.0%Crown 36.4°Girdle: MED-THKPavilion 40.6°Culet: NoneDepth 65.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 2
Current: $3,240 NZD|Low: $1,183 NZD|High: $3,240 NZD|Avg: $2,045 NZD
Frank Darling
Retailer 2
Retailer 3
Retailer 4
November 3, 2026
Retailer 3$1,188 NZD
Retailer 2$2,170 NZD
Retailer 4$3,208 NZD
Frank Darling$3,240 NZD

18 data points across 4 retailers

3 retailers$2,170 NZD to $3,240 NZD

B+
Cheapest Retailer
-
$2,170 NZD
$1,221 USD
Retailer 2
-
$3,208 NZD
$1,805 USD
View
Price last confirmed 19 days ago
Most Expensive
B
Frank Darling
100757705468KD · Nov 3
$3,240 NZD
$1,823 USD
View
2 more retailers have this diamond
Prices start from $2,170 NZDSave up to $1,070 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.

B+
1.78ct Marquise
$2,170 NZD