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Round|Lab Grown|IGI

1.70ct K SI1 Round Lab Grown Diamond

VG • K/SI1 • IGI LG451055622

Shape and cutting style on the report: Round brilliant

Certificate IGI LG451055622

Diamond specifications and retailer prices

From €945 EUR
As of November 5, 2026
Save €2,771 EUR (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €3,716 EUR at MOH London · As of November 1, 2026
View at MOH London

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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG451055622 or 451055622. Listed at 9 retailers as of November 1, 2026, with prices from €945 to €3,716, a €2,771 spread on the same certified stone. MOH London lists it at €3,716. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.70
Carat
K
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle31.8°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG451055622
Dimensions7.64 × 7.74 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.64 mm7.74 mm1.70 ctK / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG451055622
Side View
Table 63.0%Crown 31.8°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 58.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: €3,716 EUR|Low: €945 EUR|High: €3,761 EUR|Avg: €2,059 EUR
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 3€945 EUR
Retailer 4€1,095 EUR
Retailer 2€1,254 EUR
Retailer 7€1,588 EUR
Retailer 5€1,747 EUR
Retailer 6€2,290 EUR
Retailer 8€3,136 EUR
MOH London€3,716 EUR

15 data points across 8 retailers

9 retailers€945 EUR to €3,716 EUR

B+
Cheapest Retailer
-
€945 EUR
B+
Retailer 2
-
€1,028 EUR
View
Retailer 3
-
€1,095 EUR
View
Price last confirmed 25 days ago
B+
Retailer 4
-
€1,095 EUR
View
B+
Retailer 5
-
€1,254 EUR
View
B
Retailer 6
-
€1,747 EUR
View
B
Retailer 7
-
€2,054 EUR
View
B
Retailer 8
-
€2,290 EUR
View
Most Expensive
C
MOH London
LG451055622 · Nov 1
€3,716 EUR
£3,267 GBP
View
8 more retailers have this diamond
Prices start from €945 EURSave up to €2,771 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.

B+
1.70ct Round
€945 EUR