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Marquise|Lab Grown|IGI

1.73ct E VVS1 Marquise Lab Grown Diamond

EX • E/VVS1 • IGI LG797658833

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG797658833

Diamond specifications and retailer prices

From $554 NZD
$311 USD
As of October 30, 2026
Save $1,925 NZD (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,151 NZD at Rare Carat · As of October 4, 2026
View at Rare Carat

About this 1.73ct lab-grown marquise diamond

This 1.73ct lab-grown marquise sits in the one-and-a-half to two carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG797658833 or 797658833. Listed at 15 retailers as of October 29, 2026, with a 348% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73
Carat
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797658833
Dimensions12.87 × 6.18 × 3.79 mm
L/W Ratio2.08
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 mm6.18 mm1.73 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797658833
Side View
Table 59.0%Crown 34.4°Girdle: MED-STKPavilion 39.8°Culet: NoneDepth 61.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $3,151 NZD|Low: $554 NZD|High: $3,151 NZD|Avg: $1,535 NZD|+4.9%
Rare Carat
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
October 30, 2026
Retailer 15$554 NZD
Retailer 2$653 NZD
Retailer 12$899 NZD
Retailer 3$1,017 NZD
Retailer 11$1,057 NZD
Retailer 8$1,084 NZD
Retailer 7$1,135 NZD
Retailer 4$1,230 NZD
Retailer 5$1,414 NZD
Retailer 10$1,430 NZD
Retailer 13$1,891 NZD
Retailer 6$2,068 NZD
Retailer 14$2,366 NZD
Retailer 9$2,478 NZD
Rare Carat$3,151 NZD

41 data points across 15 retailers

15 retailers$554 NZD to $2,478 NZD

A
Cheapest Retailer
-
$554 NZD
$311 USD
Final sale: no returns
Retailer 2
-
$607 NZD
$341 USD
View
Price last confirmed 35 days ago
A
Retailer 3
-
$653 NZD
£289 GBP
View
A
Retailer 4
-
$899 NZD
$505 USD
View
A
Retailer 5
-
$1,017 NZD
$571 USD
View
A
Retailer 6
-
$1,057 NZD
ZAR 9,594 ZAR
View
A
Retailer 7
-
$1,084 NZD
£480 GBP
View
A
Retailer 8
-
$1,230 NZD
$691 USD
View
A
Retailer 9
-
$1,414 NZD
$794 USD
View
A
Retailer 10
-
$1,430 NZD
A$1,236 AUD
View
B+
Retailer 11
-
$1,891 NZD
$1,062 USD
View
B+
Retailer 12
-
$2,068 NZD
$1,162 USD
View
B+
Retailer 13
-
$2,366 NZD
$1,329 USD
View
B+
Retailer 14
-
$2,478 NZD
£1,096 GBP
View
Most Expensive
Rare Carat
ITU-ITUS-J1008 · Oct 4
$3,151 NZD
$1,770 USD
View
Price last confirmed 25 days ago
14 more retailers have this diamond
Prices start from $554 NZDSave up to $1,925 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
1.73ct Marquise
$554 NZD