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Princess|Lab Grown|IGI

1.71ct F SI1 Princess Lab Grown Diamond

ID • F/SI1 • IGI LG657423845

Shape and cutting style on the report: Princess cut

Certificate IGI LG657423845

Diamond specifications and retailer prices

From $245 SGD
$192 USD
As of November 2, 2026
Save $1,378 SGD (85%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,624 SGD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.71ct lab-grown princess diamond

This 1.71ct lab-grown princess sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG657423845 or 657423845. Listed at 15 retailers as of October 31, 2026, with prices from $245 to $1,624, a $1,378 spread on the same certified stone. Brilliant Earth lists it at $1,624. 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

1.71
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.5°
Pavilion angle35.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG657423845
Dimensions6.71 × 6.46 × 4.27 mm
L/W Ratio1.04
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.71 mm6.46 mm1.71 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG657423845
Side View
Table 76.0%Crown 44.5°Girdle: Slightly ThickPavilion 35.9°Culet: NoneDepth 66.1%

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: $1,624 SGD|Low: $245 SGD|High: $2,582 SGD|Avg: $884 SGD|-37.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9$245 SGD
Retailer 2$391 SGD
Retailer 10$533 SGD
Retailer 4$551 SGD
Retailer 6$570 SGD
Retailer 3$644 SGD
Retailer 11$725 SGD
Retailer 8$984 SGD
Retailer 7$1,291 SGD
Retailer 5$1,427 SGD
Brilliant Earth$1,624 SGD

44 data points across 11 retailers

15 retailers$245 SGD to $1,624 SGD

A
Cheapest Retailer
-
$245 SGD
$192 USD
A
Retailer 2
-
$285 SGD
$223 USD
View
A
Retailer 3
-
$306 SGD
$239 USD
View
Retailer 4
-
$306 SGD
$239 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
$391 SGD
£241 GBP
View
B+
Retailer 6
-
$533 SGD
$417 USD
View
A
Retailer 7
-
$551 SGD
£340 GBP
View
A
Retailer 8
-
$570 SGD
€425 EUR
View
A
Retailer 9
-
$644 SGD
$504 USD
View
B+
Retailer 10
-
$725 SGD
$567 USD
View
B+
Retailer 11
-
$981 SGD
$767 USD
View
B
Retailer 12
-
$984 SGD
$770 USD
View
B
Retailer 13
-
$1,291 SGD
$1,010 USD
View
B
Retailer 14
-
$1,427 SGD
£879 GBP
View
Most Expensive
B
Brilliant Earth
13299720A · Oct 31
$1,624 SGD
$1,270 USD
View
14 more retailers have this diamond
Prices start from $245 SGDSave up to $1,378 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
1.71ct Princess
$245 SGD