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Round|Lab Grown|IGI

1.71ct D I1 Round Lab Grown Diamond

EX • D/I1 • IGI LG490175465

Shape and cutting style on the report: Round brilliant

Certificate IGI LG490175465

Diamond specifications and retailer prices

From €276 EUR
$308 USD
As of October 30, 2026
Save €1,094 EUR (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €1,369 EUR at B2C Jewels · As of October 26, 2026
View at B2C Jewels

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 D colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI LG490175465 or 490175465. Listed at 9 retailers as of October 26, 2026, with prices from €276 to €1,369, a €1,094 spread on the same certified stone. B2C Jewels lists it at €1,369. 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
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490175465
Dimensions7.54 × 7.58 × 4.74 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
7.54 mm7.58 mm1.71 ctD / I1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490175465
Side View
Table 56.5%Crown 36.3°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.6%

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: €1,369 EUR|Low: €141 EUR|High: €1,369 EUR|Avg: €586 EUR|+140.9%
B2C Jewels
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 7€141 EUR
Retailer 6€260 EUR
Retailer 5€276 EUR
Retailer 2€343 EUR
Retailer 8€545 EUR
Retailer 4€689 EUR
Retailer 3€954 EUR
B2C Jewels€1,369 EUR

17 data points across 8 retailers

9 retailers€276 EUR to €1,369 EUR

Retailer 1
-
€210 EUR
$235 USD
Price last confirmed 39 days ago
Retailer 2
-
€243 EUR
$272 USD
View
Price last confirmed 39 days ago
Retailer 3
-
€257 EUR
$287 USD
View
Price last confirmed 36 days ago
B+
Retailer 4
-
€276 EUR
$308 USD
View
A
Retailer 5
-
€343 EUR
View
B
Retailer 6
-
€689 EUR
$770 USD
View
Retailer 7
-
€837 EUR
$935 USD
View
Price last confirmed 40 days ago
B
Retailer 8
-
€954 EUR
£839 GBP
View
Most Expensive
B
B2C Jewels
20884851 · Oct 26
€1,369 EUR
$1,530 USD
View
8 more retailers have this diamond
Prices start from €276 EURSave up to €1,094 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 Round
€276 EUR