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Radiant|Lab Grown|IGI

1.71ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG825652793

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG825652793

Diamond specifications and retailer prices

From $583 USD
As of October 27, 2026
Save $4,847 USD (89%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $5,430 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.71ct lab-grown radiant diamond

This 1.71ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825652793 or 825652793. Listed at 16 retailers as of October 27, 2026, with prices from $583 to $5,430, a $4,847 spread on the same certified stone. Brilliant Earth lists it at $5,430. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825652793
Dimensions8.57 × 5.95 × 3.97 mm
L/W Ratio1.44
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.57 mm5.95 mm1.71 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825652793
Side View
Table 62.0%Crown 37.6°Girdle: MediumPavilion 34.8°Culet: NoneDepth 66.7%

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 27
Current: $5,430 USD|Low: $583 USD|High: $5,660 USD|Avg: $2,186 USD|-4.1%
Brilliant Earth
Retailer 2
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Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 17
Retailer 18
October 29, 2026
Retailer 13$583 USD
Retailer 7$653 USD
Retailer 16$853 USD
Retailer 12$870 USD
Retailer 3$1,079 USD
Retailer 15$1,111 USD
Retailer 2$1,240 USD
Retailer 8$1,263 USD
Retailer 18$1,794 USD
Retailer 6$2,028 USD
Retailer 4$2,099 USD
Retailer 9$2,524 USD
Retailer 10$2,778 USD
Retailer 5$3,150 USD
Retailer 14$3,377 USD
Retailer 11$4,055 USD
Retailer 17$5,180 USD
Brilliant Earth$5,430 USD

32 data points across 18 retailers

16 retailers$583 USD to $5,430 USD

A
Cheapest Retailer
-
$583 USD
A
Retailer 2
-
$653 USD
View
A
Retailer 3
-
$853 USD
View
A
Retailer 4
-
$870 USD
View
A
Retailer 5
-
$1,079 USD
View
A
Retailer 6
-
$1,111 USD
View
B+
Retailer 7
-
$1,116 USD
View
B+
Retailer 8
-
$1,794 USD
View
B+
Retailer 9
-
$2,028 USD
View
B+
Retailer 10
-
$2,099 USD
View
Retailer 11
-
$2,524 USD
View
Price last confirmed 13 days ago
B
Retailer 12
-
$3,150 USD
£2,480 GBP
View
B
Retailer 13
-
$3,377 USD
View
B
Retailer 14
-
$4,055 USD
View
B
Retailer 15
-
$5,180 USD
View
Most Expensive
B
Brilliant Earth
22257910Y · Oct 29
$5,430 USD
View
15 more retailers have this diamond
Prices start from $583 USDSave up to $4,847 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 Radiant
$583 USD