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Marquise|Lab Grown|IGI

1.69ct G VS1 Marquise Lab Grown Diamond

EX • G/VS1 • IGI LG841688597

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG841688597

Diamond specifications and retailer prices

From $365 AUD
$256 USD
As of November 3, 2026
Save $422 AUD (54%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,611 AUD at Brilliant Earth · As of October 26, 2026
View at Brilliant Earth

About this 1.69ct lab-grown marquise diamond

This 1.69ct lab-grown marquise sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG841688597 or 841688597. Listed at 3 retailers as of October 28, 2026, with a 115% 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

1.69
Carat
G
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG841688597
Dimensions12.28 × 6.20 × 3.97 mm
L/W Ratio1.98
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
12.28 mm6.20 mm1.69 ctG / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG841688597
Side View
Table 59.0%Crown 38°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 64.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 3
Current: $2,611 AUD|Low: $365 AUD|High: $2,740 AUD|Avg: $1,543 AUD|-4.7%
Brilliant Earth
Retailer 2
Retailer 3
October 28, 2026
Retailer 3$365 AUD
Retailer 2$787 AUD
Brilliant Earth$2,611 AUD

24 data points across 3 retailers

3 retailers$365 AUD to $787 AUD

A
Cheapest Retailer
-
$365 AUD
$256 USD
Final sale: no returns
A
Retailer 2
-
$787 AUD
£434 GBP
View
Most Expensive
Brilliant Earth
21704949A · Oct 26
$2,611 AUD
$1,830 USD
View
Price last confirmed 7 days ago
2 more retailers have this diamond
Prices start from $365 AUDSave up to $422 AUD

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
1.69ct Marquise
$365 AUD