Round|Lab Grown|IGI

1.71ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG464198225

Shape and cutting style on the report: Round brilliant

Certificate IGI LG464198225

Diamond specifications and retailer prices

From $334 USD
As of October 29, 2026
Save $2,636 USD (89%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,970 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.71ct lab-grown round diamond

This 1.71ct lab-grown round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG464198225 or 464198225. Listed at 17 retailers as of October 29, 2026, with prices from $334 to $2,970, a $2,636 spread on the same certified stone. Do Amore Diamonds lists it at $2,970. 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
I
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG464198225
Dimensions7.65 × 7.70 × 4.75 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa.
Top View
7.65 mm7.70 mm1.71 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG464198225
Side View
Table 57.5%Crown 35.4°Girdle: MediumPavilion 41°Culet: NoneDepth 61.9%

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 29
Current: $2,970 USD|Low: $334 USD|High: $2,970 USD|Avg: $1,028 USD
Do Amore Diamonds
Retailer 2
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Retailer 17
October 30, 2026
Retailer 16$334 USD
Retailer 14$388 USD
Retailer 4$414 USD
Retailer 13$414 USD
Retailer 10$440 USD
Retailer 12$490 USD
Retailer 17$498 USD
Retailer 15$754 USD
Retailer 8$775 USD
Retailer 2$776 USD
Retailer 9$860 USD
Retailer 5$1,215 USD
Retailer 7$1,354 USD
Retailer 3$1,470 USD
Retailer 6$1,626 USD
Retailer 11$1,796 USD
Do Amore Diamonds$2,970 USD

14 data points across 17 retailers

17 retailers$334 USD to $2,970 USD

A
Cheapest Retailer
-
$334 USD
A
Retailer 2
-
$388 USD
View
A
Retailer 3
-
$414 USD
View
A
Retailer 4
-
$414 USD
View
B+
Retailer 5
-
$440 USD
View
A
Retailer 6
-
$490 USD
View
A
Retailer 7
-
$498 USD
View
A
Retailer 8
-
$754 USD
View
A
Retailer 9
-
$775 USD
View
A
Retailer 10
-
$776 USD
£611 GBP
View
A
Retailer 11
-
$860 USD
View
A
Retailer 12
-
$1,215 USD
View
A
Retailer 13
-
$1,354 USD
View
A
Retailer 14
-
$1,470 USD
View
B+
Retailer 15
-
$1,626 USD
View
B+
Retailer 16
-
$1,796 USD
£1,414 GBP
View
Most Expensive
B
Do Amore Diamonds
27-C32A20587 · Oct 29
$2,970 USD
View
16 more retailers have this diamond
Prices start from $334 USDSave up to $2,636 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 Round
$334 USD