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Marquise|Lab Grown|IGI

1.78ct F VS1 Marquise Lab Grown Diamond

EX • F/VS1 • IGI LG762573614

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG762573614

Diamond specifications and retailer prices

From $508 NZD
$286 USD
As of November 2, 2026
Save $2,300 NZD (82%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,808 NZD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG762573614 or 762573614. Listed at 22 retailers as of November 2, 2026, with prices from $508 to $2,808, a $2,300 spread on the same certified stone. Brilliant Earth lists it at $2,808. 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
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762573614
Dimensions12.87 × 6.36 × 3.84 mm
L/W Ratio2.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.87 mm6.36 mm1.78 ctF / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762573614
Side View
Table 59.0%Crown 32.2°Girdle: MED-THKPavilion 40.3°Culet: NoneDepth 60.4%

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: Nov 2
Current: $2,808 NZD|Low: $489 NZD|High: $2,968 NZD|Avg: $1,402 NZD|-5.4%
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 17$508 NZD
Retailer 7$590 NZD
Retailer 3$631 NZD
Retailer 8$631 NZD
Retailer 4$740 NZD
Retailer 15$906 NZD
Retailer 10$1,087 NZD
Retailer 2$1,104 NZD
Retailer 16$1,122 NZD
Retailer 13$1,153 NZD
Retailer 14$1,466 NZD
Retailer 11$1,919 NZD
Retailer 6$1,935 NZD
Retailer 5$2,026 NZD
Retailer 9$2,424 NZD
Retailer 12$2,539 NZD
Brilliant Earth$2,808 NZD

35 data points across 17 retailers

22 retailers$508 NZD to $2,808 NZD

A
Cheapest Retailer
-
$508 NZD
$286 USD
A
Retailer 2
-
$590 NZD
$332 USD
View
Retailer 3
-
$631 NZD
$355 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$631 NZD
$355 USD
View
B+
Retailer 5
-
$850 NZD
$478 USD
View
A
Retailer 6
-
$906 NZD
$510 USD
View
A
Retailer 7
-
$1,087 NZD
ZAR 9,878 ZAR
View
A
Retailer 8
-
$1,104 NZD
£489 GBP
View
Retailer 9
-
$1,122 NZD
€601 EUR
View
Price last confirmed 8 days ago
A
Retailer 10
-
$1,153 NZD
A$998 AUD
View
A
Retailer 11
-
$1,241 NZD
$698 USD
View
A
Retailer 12
-
$1,246 NZD
$701 USD
View
A
Retailer 13
-
$1,466 NZD
A$1,269 AUD
View
B+
Retailer 14
-
$1,919 NZD
A$1,661 AUD
View
B+
Retailer 15
-
$1,935 NZD
$1,089 USD
View
B+
Retailer 16
-
$2,026 NZD
$1,140 USD
View
B+
Retailer 17
-
$2,113 NZD
$1,189 USD
View
B
Retailer 18
-
$2,231 NZD
$1,255 USD
View
B
Retailer 19
-
$2,424 NZD
$1,364 USD
View
B+
Retailer 20
-
$2,539 NZD
£1,125 GBP
View
B
Retailer 21
-
$2,632 NZD
$1,481 USD
View
Most Expensive
B
Brilliant Earth
20624835A · Nov 2
$2,808 NZD
$1,580 USD
View
21 more retailers have this diamond
Prices start from $508 NZDSave up to $2,300 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
1.78ct Marquise
$508 NZD