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Princess|Lab Grown|IGI

1.71ct G SI1 Princess Lab Grown Diamond

ID • G/SI1 • IGI LG499123056

Shape and cutting style on the report: Princess cut

Certificate IGI LG499123056

Diamond specifications and retailer prices

From $376 USD
As of October 28, 2026
Save $2,604 USD (87%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $2,980 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499123056 or 499123056. Listed at 9 retailers as of October 28, 2026, with prices from $376 to $2,980, a $2,604 spread on the same certified stone. Do Amore Diamonds lists it at $2,980. 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
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.3°
Pavilion angle38.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499123056
Dimensions6.62 × 6.58 × 4.57 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
6.62 mm6.58 mm1.71 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499123056
Side View
Table 67.0%Crown 40.3°Girdle: MediumPavilion 38.3°Culet: NoneDepth 69.5%

Caratlytics Score

How it works →
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 28
Current: $2,980 USD|Low: $269 USD|High: $2,980 USD|Avg: $1,079 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 26, 2026
Retailer 4$376 USD
Retailer 9$415 USD
Retailer 5$518 USD
Retailer 3$673 USD
Retailer 7$810 USD
Retailer 8$852 USD
Retailer 6$1,129 USD
Retailer 10$1,242 USD
Retailer 2$1,798 USD
Do Amore Diamonds$2,980 USD

10 data points across 10 retailers

9 retailers$376 USD to $2,980 USD

A
Retailer 1
-
$336 USD
Price last confirmed 18 days ago
A
Retailer 2
-
$376 USD
View
Final sale: no returns
A
Retailer 3
-
$390 USD
View
Price last confirmed 15 days ago
A
Retailer 4
-
$416 USD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$518 USD
View
B+
Retailer 6
-
$673 USD
View
B
Retailer 7
-
$1,478 USD
View
Price last confirmed 29 days ago
B
Retailer 8
-
$1,798 USD
£1,416 GBP
View
Most Expensive
B
Do Amore Diamonds
27-2F80CE9C6 · Oct 29
$2,980 USD
View
8 more retailers have this diamond
Prices start from $376 USDSave up to $2,604 USD

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
$376 USD