CaratHunter
Plans
Marquise|Lab Grown|IGI

1.78ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG840631245

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG840631245

Diamond specifications and retailer prices

From $551 NZD
$310 USD
As of November 2, 2026
Save $2,195 NZD (80%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $2,746 NZD at Reve Diamonds · As of November 1, 2026
View at Reve 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 F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG840631245 or 840631245. Listed at 19 retailers as of November 1, 2026, with prices from $551 to $2,746, a $2,195 spread on the same certified stone. Reve Diamonds lists it at $2,746. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG840631245
Dimensions13.14 × 6.18 × 3.82 mm
L/W Ratio2.13
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.14 mm6.18 mm1.78 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG840631245
Side View
Table 57.0%Crown 34.1°Girdle: MED-STKPavilion 39.2°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: Nov 2
Current: $1,205 NZD|Low: $546 NZD|High: $2,826 NZD|Avg: $1,411 NZD|-2.7%
Retailer 1
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
Retailer 18
Reve Diamonds
November 3, 2026
Retailer 13$551 NZD
Retailer 6$617 NZD
Retailer 9$677 NZD
Retailer 18$684 NZD
Retailer 12$799 NZD
Retailer 16$921 NZD
Retailer 17$960 NZD
Retailer 14$1,179 NZD
Retailer 10$1,181 NZD
Retailer 1$1,205 NZD
Retailer 3$1,258 NZD
Retailer 7$1,579 NZD
Retailer 8$1,957 NZD
Retailer 11$2,101 NZD
Retailer 2$2,197 NZD
Retailer 5$2,280 NZD
Retailer 4$2,627 NZD
Retailer 15$2,740 NZD
Reve Diamonds$2,746 NZD

29 data points across 19 retailers

19 retailers$551 NZD to $2,746 NZD

A
Cheapest Retailer
-
$551 NZD
$310 USD
A
Retailer 2
-
$617 NZD
$347 USD
View
Final sale: no returns
Retailer 3
-
$677 NZD
$381 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$684 NZD
$385 USD
View
A
Retailer 5
-
$799 NZD
£354 GBP
View
B+
Retailer 6
-
$921 NZD
$518 USD
View
A
Retailer 7
-
$960 NZD
$540 USD
View
A
Retailer 8
-
$1,179 NZD
ZAR 10,714 ZAR
View
A
Retailer 9
-
$1,205 NZD
£534 GBP
View
A
Retailer 10
-
$1,258 NZD
$708 USD
View
A
Retailer 11
-
$1,579 NZD
A$1,367 AUD
View
Retailer 12
-
$1,957 NZD
A$1,694 AUD
View
Price last confirmed 8 days ago
B
Retailer 13
-
$2,101 NZD
$1,182 USD
View
B+
Retailer 14
-
$2,197 NZD
$1,236 USD
View
B+
Retailer 15
-
$2,248 NZD
$1,265 USD
View
B+
Retailer 16
-
$2,280 NZD
$1,283 USD
View
B
Retailer 17
-
$2,627 NZD
$1,478 USD
View
B
Retailer 18
-
$2,740 NZD
£1,214 GBP
View
Most Expensive
B
Reve Diamonds
8EE645827 · Nov 1
$2,746 NZD
$1,545 USD
View
18 more retailers have this diamond
Prices start from $551 NZDSave up to $2,195 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
$551 NZD