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Oval|Lab Grown|IGI

1.70ct J SI2 Oval Lab Grown Diamond

ID • J/SI2 • IGI LG445037389

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445037389

Diamond specifications and retailer prices

From £634 GBP
$850 USD
As of October 29, 2026
Save £2,789 GBP (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,424 GBP at MOH London · As of October 27, 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 J colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445037389 or 445037389. Listed at 10 retailers as of October 27, 2026, with prices from £634 to £3,424, a £2,789 spread on the same certified stone. MOH London lists it at £3,424. 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
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle34.9°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445037389
Dimensions9.02 × 6.74 × 4.35 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.02 mm6.74 mm1.70 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG445037389
Side View
Table 59.0%Crown 34.9°Girdle: MED-VTKPavilion 41.3°Culet: NoneDepth 64.5%

Caratlytics Score

How it works →
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: Oct 29
Current: £3,424 GBP|Low: £634 GBP|High: £3,464 GBP|Avg: £1,827 GBP|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 25, 2026
Retailer 2£634 GBP
Retailer 4£1,155 GBP
Retailer 7£1,240 GBP
Retailer 6£1,642 GBP
Retailer 3£1,890 GBP
Retailer 5£2,173 GBP
Retailer 8£2,679 GBP
MOH London£3,424 GBP

12 data points across 8 retailers

10 retailers£634 GBP to £3,424 GBP

A
Cheapest Retailer
-
£634 GBP
$850 USD
B+
Retailer 2
-
£1,032 GBP
$1,383 USD
View
B+
Retailer 3
-
£1,122 GBP
$1,504 USD
View
B+
Retailer 4
-
£1,155 GBP
$1,548 USD
View
Final sale: no returns
Retailer 5
-
£1,197 GBP
$1,604 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
£1,197 GBP
$1,604 USD
View
B
Retailer 7
-
£1,890 GBP
$2,533 USD
View
B
Retailer 8
-
£2,173 GBP
$2,911 USD
View
B
Retailer 9
-
£2,243 GBP
$3,006 USD
View
Most Expensive
B
MOH London
LG445037389 · Oct 27
£3,424 GBP
View
9 more retailers have this diamond
Prices start from £634 GBPSave up to £2,789 GBP

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
£634 GBP