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Round|Lab Grown|IGI

1.70ct H SI1 Round Lab Grown Diamond

EX • H/SI1 • IGI LG440012142

Shape and cutting style on the report: Round brilliant

Certificate IGI LG440012142

Diamond specifications and retailer prices

From €895 EUR
$1,000 USD
As of October 31, 2026
Save €4,465 EUR (83%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: €5,360 EUR at MOH London · As of October 29, 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440012142 or 440012142. Listed at 12 retailers as of October 29, 2026, with prices from €895 to €5,360, a €4,465 spread on the same certified stone. MOH London lists it at €5,360. 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
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle40.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440012142
Dimensions7.78 × 7.77 × 4.54 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.78 mm7.77 mm1.70 ctH / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440012142
Side View
Table 60.5%Crown 31.5°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 58.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: €5,360 EUR|Low: €895 EUR|High: €5,396 EUR|Avg: €2,720 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
November 1, 2026
Retailer 7€895 EUR
Retailer 9€1,609 EUR
Retailer 12€1,751 EUR
Retailer 14€1,802 EUR
Retailer 3€1,867 EUR
Retailer 10€1,867 EUR
Retailer 4€2,018 EUR
Retailer 5€2,482 EUR
Retailer 11€2,928 EUR
Retailer 8€3,140 EUR
Retailer 2€3,221 EUR
Retailer 13€3,499 EUR
Retailer 6€5,344 EUR
MOH London€5,360 EUR

38 data points across 14 retailers

12 retailers€895 EUR to €5,360 EUR

A
Cheapest Retailer
-
€895 EUR
$1,000 USD
B+
Retailer 2
-
€1,609 EUR
$1,798 USD
View
B+
Retailer 3
-
€1,751 EUR
$1,956 USD
View
B+
Retailer 4
-
€1,802 EUR
$2,013 USD
View
Final sale: no returns
B
Retailer 5
-
€1,867 EUR
$2,086 USD
View
Retailer 6
-
€1,867 EUR
$2,086 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
€2,018 EUR
$2,255 USD
View
B
Retailer 8
-
€2,928 EUR
$3,271 USD
View
B
Retailer 9
-
€3,140 EUR
$3,508 USD
View
B
Retailer 10
-
€3,221 EUR
£2,833 GBP
View
B
Retailer 11
-
€3,499 EUR
$3,909 USD
View
Most Expensive
B
MOH London
LG440012142 · Oct 29
€5,360 EUR
£4,715 GBP
View
11 more retailers have this diamond
Prices start from €895 EURSave up to €4,465 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
€895 EUR