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Round|Lab Grown|IGI

1.70ct H SI2 Round Lab Grown Diamond

EX • H/SI2 • IGI LG407945444

Shape and cutting style on the report: Round brilliant

Certificate IGI LG407945444

Diamond specifications and retailer prices

From €877 EUR
$980 USD
As of October 31, 2026
Save €3,565 EUR (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €4,442 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG407945444 or 407945444. Listed at 11 retailers as of October 29, 2026, with prices from €877 to €4,442, a €3,565 spread on the same certified stone. MOH London lists it at €4,442. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG407945444
Dimensions7.67 × 7.63 × 4.79 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.67 mm7.63 mm1.70 ctH / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG407945444
Side View
Table 54.0%Crown 34.3°Girdle: MediumPavilion 40.9°Culet: NoneDepth 62.6%

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: €4,442 EUR|Low: €877 EUR|High: €4,479 EUR|Avg: €2,061 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
Retailer 15
October 30, 2026
Retailer 2€877 EUR
Retailer 5€999 EUR
Retailer 9€1,334 EUR
Retailer 12€1,451 EUR
Retailer 14€1,494 EUR
Retailer 10€1,548 EUR
Retailer 15€1,548 EUR
Retailer 6€1,703 EUR
Retailer 8€1,893 EUR
Retailer 4€2,103 EUR
Retailer 11€2,438 EUR
Retailer 3€2,808 EUR
Retailer 13€2,900 EUR
Retailer 7€3,464 EUR
MOH London€4,442 EUR

21 data points across 15 retailers

11 retailers€877 EUR to €4,442 EUR

A
Cheapest Retailer
-
€877 EUR
$980 USD
B+
Retailer 2
-
€1,334 EUR
$1,490 USD
View
B+
Retailer 3
-
€1,451 EUR
$1,621 USD
View
B+
Retailer 4
-
€1,494 EUR
$1,669 USD
View
Final sale: no returns
B+
Retailer 5
-
€1,548 EUR
$1,729 USD
View
Retailer 6
-
€1,548 EUR
$1,729 USD
View
Price last confirmed 19 days ago
B+
Retailer 7
-
€1,893 EUR
£1,665 GBP
View
B
Retailer 8
-
€2,438 EUR
$2,724 USD
View
B
Retailer 9
-
€2,808 EUR
$3,137 USD
View
B
Retailer 10
-
€2,900 EUR
$3,240 USD
View
Most Expensive
B
MOH London
LG407945444 · Oct 29
€4,442 EUR
£3,908 GBP
View
10 more retailers have this diamond
Prices start from €877 EURSave up to €3,565 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
€877 EUR