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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 $311 USD
As of October 28, 2026
Save $1,081 USD (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,770 USD 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 28, 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
Color
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 28
Current: $1,770 USD|Low: $311 USD|High: $1,770 USD|Avg: $863 USD|+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 29, 2026
Retailer 15$311 USD
Retailer 9$368 USD
Retailer 12$505 USD
Retailer 3$571 USD
Retailer 11$594 USD
Retailer 2$607 USD
Retailer 7$637 USD
Retailer 4$691 USD
Retailer 5$794 USD
Retailer 10$803 USD
Retailer 13$1,062 USD
Retailer 6$1,162 USD
Retailer 14$1,329 USD
Retailer 8$1,392 USD
Rare Carat$1,770 USD

40 data points across 15 retailers

15 retailers$311 USD to $1,392 USD

A
Cheapest Retailer
-
$311 USD
Final sale: no returns
A
Retailer 2
-
$341 USD
View
Price last confirmed 34 days ago
A
Retailer 3
-
$368 USD
£289 GBP
View
A
Retailer 4
-
$505 USD
View
A
Retailer 5
-
$571 USD
View
A
Retailer 6
-
$594 USD
ZAR 9,594 ZAR
View
A
Retailer 7
-
$607 USD
£478 GBP
View
A
Retailer 8
-
$691 USD
View
A
Retailer 9
-
$794 USD
View
A
Retailer 10
-
$803 USD
A$1,236 AUD
View
B+
Retailer 11
-
$1,062 USD
View
B+
Retailer 12
-
$1,162 USD
View
B+
Retailer 13
-
$1,329 USD
View
B+
Retailer 14
-
$1,392 USD
£1,096 GBP
View
Most Expensive
B
Rare Carat
ITU-ITUS-J1008 · Oct 4
$1,770 USD
View
Price last confirmed 25 days ago
14 more retailers have this diamond
Prices start from $311 USDSave up to $1,081 USD

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
$311 USD