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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 $473 SGD
$370 USD
As of October 30, 2026
Save $1,930 SGD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,403 SGD 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 30, 2026, with prices from $473 to $2,403, a $1,930 spread on the same certified stone. Brilliant Earth lists it at $2,403. 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: Oct 30
Current: $2,403 SGD|Low: $454 SGD|High: $4,641 SGD|Avg: $1,199 SGD|-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 1, 2026
Retailer 11$473 SGD
Retailer 3$548 SGD
Retailer 4$587 SGD
Retailer 12$587 SGD
Retailer 9$656 SGD
Retailer 8$780 SGD
Retailer 6$933 SGD
Retailer 14$937 SGD
Retailer 7$1,059 SGD
Retailer 5$1,071 SGD
Retailer 10$1,721 SGD
Retailer 13$1,886 SGD
Retailer 2$2,292 SGD
Brilliant Earth$2,403 SGD

42 data points across 14 retailers

14 retailers$473 SGD to $2,403 SGD

A
Cheapest Retailer
-
$473 SGD
$370 USD
A
Retailer 2
-
$548 SGD
$429 USD
View
Retailer 3
-
$587 SGD
$459 USD
View
Price last confirmed 7 days ago
A
Retailer 4
-
$587 SGD
$459 USD
View
Retailer 5
-
$656 SGD
£404 GBP
View
Price last confirmed 15 days ago
A
Retailer 6
-
$780 SGD
$610 USD
View
B+
Retailer 7
-
$933 SGD
$730 USD
View
B+
Retailer 8
-
$937 SGD
$733 USD
View
B+
Retailer 9
-
$1,059 SGD
£652 GBP
View
B+
Retailer 10
-
$1,071 SGD
$838 USD
View
B
Retailer 11
-
$1,721 SGD
$1,346 USD
View
B
Retailer 12
-
$1,886 SGD
$1,475 USD
View
B
Retailer 13
-
$2,292 SGD
£1,412 GBP
View
Most Expensive
B
Brilliant Earth
21067453A · Oct 31
$2,403 SGD
$1,880 USD
View
13 more retailers have this diamond
Prices start from $473 SGDSave up to $1,930 SGD

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
$473 SGD