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Marquise|Lab Grown|IGI

1.97ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG799606499

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG799606499

Diamond specifications and retailer prices

From $528 AUD
$370 USD
As of November 2, 2026
Save $2,155 AUD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,683 AUD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.97ct lab-grown marquise diamond

This 1.97ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG799606499 or 799606499. Listed at 14 retailers as of October 31, 2026, with prices from $528 to $2,683, a $2,155 spread on the same certified stone. Brilliant Earth lists it at $2,683. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.97
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799606499
Dimensions13.45 × 6.57 × 3.93 mm
L/W Ratio2.05
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.45 mm6.57 mm1.97 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799606499
Side View
Table 63.0%Crown 33.1°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 59.8%

Caratlytics Score

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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: $2,683 AUD|Low: $507 AUD|High: $5,180 AUD|Avg: $1,336 AUD|-30.1%
Brilliant Earth
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
November 2, 2026
Retailer 11$528 AUD
Retailer 3$612 AUD
Retailer 4$655 AUD
Retailer 12$655 AUD
Retailer 9$733 AUD
Retailer 8$870 AUD
Retailer 6$1,042 AUD
Retailer 14$1,046 AUD
Retailer 2$1,173 AUD
Retailer 5$1,196 AUD
Retailer 10$1,921 AUD
Retailer 13$2,105 AUD
Retailer 7$2,559 AUD
Brilliant Earth$2,683 AUD

43 data points across 14 retailers

14 retailers$528 AUD to $2,683 AUD

A
Cheapest Retailer
-
$528 AUD
$370 USD
A
Retailer 2
-
$612 AUD
$429 USD
View
Retailer 3
-
$655 AUD
$459 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
$655 AUD
$459 USD
View
Retailer 5
-
$733 AUD
£404 GBP
View
Price last confirmed 16 days ago
A
Retailer 6
-
$870 AUD
$610 USD
View
B+
Retailer 7
-
$1,042 AUD
$730 USD
View
B+
Retailer 8
-
$1,046 AUD
$733 USD
View
B+
Retailer 9
-
$1,173 AUD
£647 GBP
View
B+
Retailer 10
-
$1,196 AUD
$838 USD
View
B
Retailer 11
-
$1,921 AUD
$1,346 USD
View
B
Retailer 12
-
$2,105 AUD
$1,475 USD
View
B
Retailer 13
-
$2,559 AUD
£1,412 GBP
View
Most Expensive
B
Brilliant Earth
21067453A · Oct 31
$2,683 AUD
$1,880 USD
View
13 more retailers have this diamond
Prices start from $528 AUDSave up to $2,155 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
1.97ct Marquise
$528 AUD