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Round|Lab Grown|IGI

1.70ct J SI1 Round Lab Grown Diamond

ID • J/SI1 • IGI LG470151246

Shape and cutting style on the report: Round brilliant

Certificate IGI LG470151246

Diamond specifications and retailer prices

From €385 EUR
$432 USD
As of November 1, 2026
Save €1,969 EUR (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €2,354 EUR at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.7ct lab-grown round diamond

This 1.7ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG470151246 or 470151246. Listed at 13 retailers as of October 31, 2026, with prices from €385 to €2,354, a €1,969 spread on the same certified stone. Do Amore Diamonds lists it at €2,354. 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

1.70
Carat
J
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG470151246
Dimensions7.68 × 7.64 × 4.73 mm
L/W Ratio1.01
Girdle conditionFaceted
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
7.68 mm7.64 mm1.70 ctJ / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG470151246
Side View
Table 57.5%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.8%

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: Nov 1
Current: €2,354 EUR|Low: €257 EUR|High: €2,354 EUR|Avg: €767 EUR
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 7€257 EUR
Retailer 4€385 EUR
Retailer 9€532 EUR
Retailer 5€539 EUR
Retailer 6€753 EUR
Retailer 3€1,010 EUR
Retailer 8€1,176 EUR
Retailer 2€1,462 EUR
Do Amore Diamonds€2,354 EUR

15 data points across 9 retailers

13 retailers€385 EUR to €2,354 EUR

Retailer 1
-
€207 EUR
$232 USD
Price last confirmed 42 days ago
Retailer 2
-
€240 EUR
$269 USD
View
Price last confirmed 42 days ago
Retailer 3
-
€253 EUR
$284 USD
View
Price last confirmed 42 days ago
A
Retailer 4
-
€385 EUR
$432 USD
View
A
Retailer 5
-
€468 EUR
$525 USD
View
B+
Retailer 6
-
€539 EUR
$604 USD
View
Retailer 7
-
€615 EUR
$690 USD
View
Price last confirmed 9 days ago
A
Retailer 8
-
€753 EUR
$845 USD
View
Retailer 9
-
€911 EUR
$1,022 USD
View
Price last confirmed 43 days ago
B+
Retailer 10
-
€1,010 EUR
$1,133 USD
View
B+
Retailer 11
-
€1,176 EUR
$1,319 USD
View
B
Retailer 12
-
€1,462 EUR
£1,291 GBP
View
Most Expensive
B
Do Amore Diamonds
27-831F1B287 · Oct 31
€2,354 EUR
$2,640 USD
View
12 more retailers have this diamond
Prices start from €385 EURSave up to €1,969 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
1.70ct Round
€385 EUR