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Marquise|Lab Grown|IGI

1.73ct F VS2 Marquise Lab Grown Diamond

EX • F/VS2 • IGI LG838624178

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG838624178

Diamond specifications and retailer prices

From $388 USD
As of November 2, 2026
Save $642 USD (62%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $1,265 USD at Rare Carat · As of September 30, 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 F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG838624178 or 838624178. Listed at 7 retailers as of October 29, 2026, with a 166% 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
F
Color
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838624178
Dimensions12.73 × 6.10 × 3.93 mm
L/W Ratio2.09
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.73 mm6.10 mm1.73 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838624178
Side View
Table 56.0%Crown 34.6°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 64.4%

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: Nov 2
Current: $1,265 USD|Low: $388 USD|High: $1,480 USD|Avg: $850 USD
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 6$388 USD
Retailer 7$423 USD
Retailer 4$496 USD
Retailer 5$550 USD
Retailer 8$590 USD
Retailer 3$696 USD
Retailer 2$1,030 USD
Rare Carat$1,265 USD
Retailer 9$1,480 USD

10 data points across 9 retailers

7 retailers$388 USD to $1,030 USD

A
Cheapest Retailer
-
$388 USD
B+
Retailer 2
-
$423 USD
View
A
Retailer 3
-
$496 USD
View
A
Retailer 4
-
$550 USD
€524 EUR
View
A
Retailer 5
-
$626 USD
View
B+
Retailer 6
-
$1,030 USD
A$1,584 AUD
View
Most Expensive
Rare Carat
838624178 · Sep 30
$1,265 USD
View
Price last confirmed 33 days ago
6 more retailers have this diamond
Prices start from $388 USDSave up to $642 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
$388 USD