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Radiant|Lab Grown|IGI

1.71ct D FL Radiant Lab Grown Diamond

EX • D/FL • IGI LG818654487

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

Certificate IGI LG818654487

Diamond specifications and retailer prices

From €522 EUR
$583 USD
As of October 30, 2026
Save €4,115 EUR (89%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €4,637 EUR at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

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 LG818654487 or 818654487. Listed at 12 retailers as of October 30, 2026, with prices from €522 to €4,637, a €4,115 spread on the same certified stone. Do Amore Diamonds lists it at €4,637. 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
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.4°
Pavilion angle31.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818654487
Dimensions8.71 × 5.86 × 3.83 mm
L/W Ratio1.49
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
8.71 mm5.86 mm1.71 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818654487
Side View
Table 63.0%Crown 44.4°Girdle: MED-STKPavilion 31.9°Culet: NoneDepth 65.4%

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 30
Current: €4,637 EUR|Low: €522 EUR|High: €5,943 EUR|Avg: €2,281 EUR|-14.4%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 8€522 EUR
Retailer 12€584 EUR
Retailer 3€779 EUR
Retailer 4€966 EUR
Retailer 9€994 EUR
Retailer 2€1,146 EUR
Retailer 10€1,606 EUR
Retailer 11€1,879 EUR
Retailer 7€2,831 EUR
Retailer 5€2,885 EUR
Retailer 6€3,401 EUR
Retailer 13€3,630 EUR
Do Amore Diamonds€4,637 EUR

31 data points across 13 retailers

12 retailers€522 EUR to €4,637 EUR

A
Cheapest Retailer
-
€522 EUR
$583 USD
A
Retailer 2
-
€584 EUR
$653 USD
View
A
Retailer 3
-
€779 EUR
$870 USD
View
A
Retailer 4
-
€966 EUR
$1,079 USD
View
A
Retailer 5
-
€994 EUR
$1,111 USD
View
B+
Retailer 6
-
€1,146 EUR
View
B+
Retailer 7
-
€1,606 EUR
$1,794 USD
View
B+
Retailer 8
-
€1,879 EUR
$2,099 USD
View
B
Retailer 9
-
€2,831 EUR
£2,490 GBP
View
B
Retailer 10
-
€3,401 EUR
$3,800 USD
View
B
Retailer 11
-
€3,630 EUR
$4,055 USD
View
Most Expensive
B
Do Amore Diamonds
27-D7290C018 · Oct 30
€4,637 EUR
$5,180 USD
View
11 more retailers have this diamond
Prices start from €522 EURSave up to €4,115 EUR

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
€522 EUR