CaratHunter
Plans
Marquise|Lab Grown|IGI

1.78ct G VS1 Marquise Lab Grown Diamond

VG • G/VS1 • IGI LG838632478

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG838632478

Diamond specifications and retailer prices

From $864 NZD
$486 USD
As of November 1, 2026
Save $3,313 NZD (79%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,177 NZD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

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 G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG838632478 or 838632478. Listed at 8 retailers as of November 1, 2026, with prices from $864 to $4,177, a $3,313 spread on the same certified stone. Do Amore Diamonds lists it at $4,177. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.78
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838632478
Dimensions12.38 × 6.34 × 3.96 mm
L/W Ratio1.95
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.38 mm6.34 mm1.78 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838632478
Side View
Table 62.0%Crown 35.2°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.5%

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 1
Current: $4,177 NZD|Low: $864 NZD|High: $4,177 NZD|Avg: $2,059 NZD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 5$864 NZD
Retailer 7$906 NZD
Retailer 2$1,262 NZD
Retailer 4$2,115 NZD
Retailer 6$2,580 NZD
Retailer 3$2,858 NZD
Do Amore Diamonds$4,177 NZD

29 data points across 7 retailers

8 retailers$864 NZD to $4,177 NZD

B+
Cheapest Retailer
-
$864 NZD
$486 USD
A
Retailer 2
-
$906 NZD
$510 USD
View
A
Retailer 3
-
$1,262 NZD
£559 GBP
View
B+
Retailer 4
-
$2,115 NZD
$1,190 USD
View
B
Retailer 5
-
$2,133 NZD
$1,200 USD
View
B
Retailer 6
-
$2,580 NZD
$1,451 USD
View
B
Retailer 7
-
$2,858 NZD
£1,266 GBP
View
Most Expensive
B
Do Amore Diamonds
36-2007084 · Nov 2
$4,177 NZD
$2,350 USD
View
7 more retailers have this diamond
Prices start from $864 NZDSave up to $3,313 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
$864 NZD