Princess|Lab Grown|IGI

1.71ct G SI1 Princess Lab Grown Diamond

GD • G/SI1 • IGI LG570367221

Shape and cutting style on the report: Princess cut

Certificate IGI LG570367221

Diamond specifications and retailer prices

From $273 USD
As of October 30, 2026
Save $2,157 USD (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,430 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 standard cut grade and certified by IGI LG570367221 or 570367221. Listed at 15 retailers as of October 29, 2026, with prices from $273 to $2,430, a $2,157 spread on the same certified stone. Do Amore Diamonds lists it at $2,430. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.71
Carat
G
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.9°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG570367221
Dimensions6.45 × 6.38 × 4.60 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
6.45 mm6.38 mm1.71 ctG / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG570367221
Side View
Table 67.0%Crown 41.9°Girdle: Slightly ThickPavilion 38.2°Culet: NoneDepth 72.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Oct 30
Current: $2,430 USD|Low: $339 USD|High: $2,430 USD|Avg: $964 USD
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 6$339 USD
Retailer 8$476 USD
Retailer 5$480 USD
Retailer 9$562 USD
Retailer 2$664 USD
Retailer 3$897 USD
Retailer 10$980 USD
Retailer 7$1,041 USD
Retailer 11$1,204 USD
Retailer 4$1,507 USD
Do Amore Diamonds$2,430 USD

21 data points across 11 retailers

15 retailers$273 USD to $2,430 USD

Retailer 1
-
$249 USD
Price last confirmed 17 days ago
B+
Retailer 2
-
$273 USD
View
Retailer 3
-
$317 USD
View
Price last confirmed 10 days ago
Retailer 4
-
$339 USD
View
Price last confirmed 13 days ago
B+
Retailer 5
-
$339 USD
View
B+
Retailer 6
-
$476 USD
View
B+
Retailer 7
-
$480 USD
View
B+
Retailer 8
-
$562 USD
View
B
Retailer 9
-
$664 USD
£523 GBP
View
B
Retailer 10
-
$897 USD
View
B
Retailer 11
-
$980 USD
View
B
Retailer 12
-
$1,041 USD
View
B
Retailer 13
-
$1,204 USD
View
B
Retailer 14
-
$1,507 USD
£1,187 GBP
View
Most Expensive
C
Do Amore Diamonds
27-E59DBDA97 · Oct 29
$2,430 USD
View
14 more retailers have this diamond
Prices start from $273 USDSave up to $2,157 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.

B+
1.71ct Princess
$273 USD