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Marquise|Lab Grown|IGI

1.70ct F VS2 Marquise Lab Grown Diamond

VG • F/VS2 • IGI LG789633233

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG789633233

Diamond specifications and retailer prices

From $1,057 USD
£832 GBP
As of November 2, 2026
Save $453 USD (30%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $1,510 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 1.7ct lab-grown marquise diamond

This 1.7ct 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 very-good cut grade and certified by IGI LG789633233 or 789633233. Listed at 3 retailers as of November 2, 2026, with prices from $1,057 to $1,510, a $453 spread on the same certified stone. Brilliant Earth lists it at $1,510. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.70
Carat
F
Color
VS2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG789633233
Dimensions12.31 × 6.34 × 3.80 mm
L/W Ratio1.94
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.31 mm6.34 mm1.70 ctF / VS2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG789633233
Side View
Table 61.0%Crown 33.8°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $1,510 USD|Low: $582 USD|High: $2,290 USD|Avg: $1,192 USD|-34.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
August 25, 2026
Retailer 3$582 USD
Retailer 4$1,057 USD
Retailer 2$1,408 USD
Brilliant Earth$1,510 USD

47 data points across 4 retailers

3 retailers$1,057 USD to $1,510 USD

B+
Cheapest Retailer
-
$1,057 USD
£832 GBP
B
Retailer 2
-
$1,408 USD
View
Most Expensive
B
Brilliant Earth
20042537A · Nov 2
$1,510 USD
View
2 more retailers have this diamond
Prices start from $1,057 USDSave up to $453 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.

B+
1.70ct Marquise
$1,057 USD