CaratHunter
Plans
Oval|Lab Grown|IGI

1.70ct I SI1 Oval Lab Grown Diamond

ID • I/SI1 • IGI LG445036756

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445036756

Diamond specifications and retailer prices

From €841 EUR
$940 USD
As of October 31, 2026
Save €2,009 EUR (70%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €4,367 EUR at MOH London · As of October 21, 2026
View at MOH London

About this 1.7ct lab-grown oval diamond

This 1.7ct lab-grown oval sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445036756 or 445036756. Listed at 11 retailers as of October 31, 2026, with a 239% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle42.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445036756
Dimensions9.06 × 6.74 × 4.32 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
9.06 mm6.74 mm1.70 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445036756
Side View
Table 59.5%Crown 34.2°Girdle: STK-THKPavilion 42.1°Culet: NoneDepth 64.1%

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: €4,367 EUR|Low: €841 EUR|High: €4,402 EUR|Avg: €2,188 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
October 18, 2026
Retailer 6€841 EUR
Retailer 2€1,311 EUR
Retailer 10€1,427 EUR
Retailer 11€1,467 EUR
Retailer 7€1,521 EUR
Retailer 5€1,539 EUR
Retailer 12€1,674 EUR
Retailer 3€2,070 EUR
Retailer 8€2,398 EUR
Retailer 13€2,760 EUR
Retailer 9€2,851 EUR
Retailer 4€4,355 EUR
MOH London€4,367 EUR

13 data points across 13 retailers

11 retailers€841 EUR to €2,851 EUR

A
Cheapest Retailer
-
€841 EUR
$940 USD
A
Retailer 2
-
€1,311 EUR
$1,465 USD
View
B+
Retailer 3
-
€1,427 EUR
$1,594 USD
View
B+
Retailer 4
-
€1,467 EUR
$1,639 USD
View
Final sale: no returns
Retailer 5
-
€1,521 EUR
$1,699 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
€1,521 EUR
$1,699 USD
View
B+
Retailer 7
-
€1,674 EUR
$1,870 USD
View
B
Retailer 8
-
€2,398 EUR
$2,679 USD
View
B
Retailer 9
-
€2,760 EUR
$3,084 USD
View
B
Retailer 10
-
€2,851 EUR
$3,185 USD
View
Most Expensive
MOH London
LG445036756 · Oct 21
€4,367 EUR
£3,842 GBP
View
Price last confirmed 11 days ago
10 more retailers have this diamond
Prices start from €841 EURSave up to €2,009 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 Oval
€841 EUR