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Marquise|Lab Grown|IGI

1.97ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG800664953

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG800664953

Diamond specifications and retailer prices

From $473 SGD
$370 USD
As of October 30, 2026
Save $2,966 SGD (86%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $3,439 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 LG800664953 or 800664953. Listed at 17 retailers as of October 30, 2026, with prices from $473 to $3,439, a $2,966 spread on the same certified stone. Brilliant Earth lists it at $3,439. 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 angle32.6°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800664953
Dimensions13.56 × 6.78 × 3.85 mm
L/W Ratio2.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
13.56 mm6.78 mm1.97 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800664953
Side View
Table 66.0%Crown 32.6°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 56.8%

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: $3,439 SGD|Low: $454 SGD|High: $4,347 SGD|Avg: $1,270 SGD
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
Retailer 15
Retailer 16
Retailer 17
November 1, 2026
Retailer 15$473 SGD
Retailer 16$529 SGD
Retailer 5$548 SGD
Retailer 6$587 SGD
Retailer 17$587 SGD
Retailer 12$656 SGD
Retailer 11$780 SGD
Retailer 8$933 SGD
Retailer 4$937 SGD
Retailer 10$1,059 SGD
Retailer 7$1,071 SGD
Retailer 13$1,721 SGD
Retailer 3$1,886 SGD
Retailer 9$1,936 SGD
Retailer 14$2,220 SGD
Retailer 2$2,292 SGD
Brilliant Earth$3,439 SGD

42 data points across 17 retailers

17 retailers$473 SGD to $3,439 SGD

A
Cheapest Retailer
-
$473 SGD
$370 USD
A
Retailer 2
-
$529 SGD
$414 USD
View
Final sale: no returns
A
Retailer 3
-
$548 SGD
$429 USD
View
Retailer 4
-
$587 SGD
$459 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$587 SGD
$459 USD
View
Retailer 6
-
$656 SGD
£404 GBP
View
Price last confirmed 15 days ago
A
Retailer 7
-
$780 SGD
$610 USD
View
B+
Retailer 8
-
$933 SGD
$730 USD
View
B+
Retailer 9
-
$937 SGD
$733 USD
View
B+
Retailer 10
-
$1,059 SGD
£652 GBP
View
B+
Retailer 11
-
$1,071 SGD
$838 USD
View
B
Retailer 12
-
$1,721 SGD
$1,346 USD
View
B
Retailer 13
-
$1,886 SGD
$1,475 USD
View
B
Retailer 14
-
$1,936 SGD
$1,514 USD
View
B
Retailer 15
-
$2,220 SGD
$1,736 USD
View
B
Retailer 16
-
$2,292 SGD
£1,412 GBP
View
Most Expensive
B
Brilliant Earth
21067235A · Oct 31
$3,439 SGD
$2,690 USD
View
16 more retailers have this diamond
Prices start from $473 SGDSave up to $2,966 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