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Marquise|Lab Grown|IGI

1.78ct F VS1 Marquise Lab Grown Diamond

ID • F/VS1 • IGI LG825654747

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG825654747

Diamond specifications and retailer prices

From $503 NZD
$283 USD
As of November 2, 2026
Save $2,127 NZD (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $2,630 NZD at With Clarity · As of November 1, 2026
View at With Clarity

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 LG825654747 or 825654747. Listed at 22 retailers as of November 1, 2026, with prices from $503 to $2,630, a $2,127 spread on the same certified stone. With Clarity lists it at $2,630. 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 angle32.3°
Pavilion angle39.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825654747
Dimensions12.37 × 6.44 × 3.87 mm
L/W Ratio1.92
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.37 mm6.44 mm1.78 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825654747
Side View
Table 57.0%Crown 32.3°Girdle: MED-STKPavilion 39.3°Culet: NoneDepth 60.1%

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: $1,630 NZD|Low: $503 NZD|High: $2,657 NZD|Avg: $1,397 NZD|-7.8%
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
Retailer 19
Retailer 20
Retailer 21
With Clarity
November 2, 2026
Retailer 10$503 NZD
Retailer 11$562 NZD
Retailer 7$585 NZD
Retailer 4$624 NZD
Retailer 6$624 NZD
Retailer 12$730 NZD
Retailer 2$906 NZD
Retailer 20$1,029 NZD
Retailer 16$1,076 NZD
Retailer 15$1,093 NZD
Retailer 8$1,239 NZD
Retailer 18$1,241 NZD
Retailer 19$1,452 NZD
Retailer 1$1,630 NZD
Retailer 3$1,932 NZD
Retailer 13$2,004 NZD
Retailer 5$2,007 NZD
Retailer 9$2,097 NZD
Retailer 21$2,195 NZD
Retailer 14$2,401 NZD
Retailer 17$2,501 NZD
With Clarity$2,630 NZD

21 data points across 22 retailers

22 retailers$503 NZD to $2,630 NZD

A
Cheapest Retailer
-
$503 NZD
$283 USD
A
Retailer 2
-
$562 NZD
$316 USD
View
Final sale: no returns
A
Retailer 3
-
$585 NZD
$329 USD
View
Retailer 4
-
$624 NZD
$351 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$624 NZD
$351 USD
View
A
Retailer 6
-
$730 NZD
£323 GBP
View
A
Retailer 7
-
$906 NZD
$510 USD
View
A
Retailer 8
-
$1,029 NZD
$579 USD
View
A
Retailer 9
-
$1,076 NZD
ZAR 9,785 ZAR
View
A
Retailer 10
-
$1,093 NZD
£484 GBP
View
A
Retailer 11
-
$1,239 NZD
$697 USD
View
A
Retailer 12
-
$1,241 NZD
$698 USD
View
A
Retailer 13
-
$1,452 NZD
A$1,257 AUD
View
A
Retailer 14
-
$1,630 NZD
$917 USD
View
Retailer 15
-
$1,932 NZD
A$1,672 AUD
View
Price last confirmed 7 days ago
B+
Retailer 16
-
$2,004 NZD
SGD 1,524 SGD
View
B+
Retailer 17
-
$2,007 NZD
$1,129 USD
View
B+
Retailer 18
-
$2,097 NZD
$1,180 USD
View
B+
Retailer 19
-
$2,195 NZD
$1,235 USD
View
B+
Retailer 20
-
$2,401 NZD
$1,351 USD
View
B+
Retailer 21
-
$2,501 NZD
£1,108 GBP
View
Most Expensive
B
With Clarity
825654747 · Nov 1
$2,630 NZD
$1,480 USD
View
21 more retailers have this diamond
Prices start from $503 NZDSave up to $2,127 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
$503 NZD