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Oval|Lab Grown|IGI

1.70ct J SI2 Oval Lab Grown Diamond

ID • J/SI2 • IGI LG447098397

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG447098397

Diamond specifications and retailer prices

From £634 GBP
$850 USD
As of October 29, 2026
Save £2,588 GBP (80%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £3,223 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 LG447098397 or 447098397. Listed at 10 retailers as of October 27, 2026, with prices from £634 to £3,223, a £2,588 spread on the same certified stone. MOH London lists it at £3,223. 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
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447098397
Dimensions9.39 × 6.68 × 4.27 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.39 mm6.68 mm1.70 ctJ / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447098397
Side View
Table 58.5%Crown 36.4°Girdle: STK-THKPavilion 41°Culet: NoneDepth 63.9%

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: £3,223 GBP|Low: £634 GBP|High: £3,262 GBP|Avg: £1,689 GBP|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 25, 2026
Retailer 2£634 GBP
Retailer 4£966 GBP
Retailer 6£1,431 GBP
Retailer 3£1,592 GBP
Retailer 5£1,973 GBP
Retailer 7£2,242 GBP
MOH London£3,223 GBP

11 data points across 7 retailers

10 retailers£634 GBP to £3,223 GBP

A
Cheapest Retailer
-
£634 GBP
$850 USD
B+
Retailer 2
-
£864 GBP
$1,157 USD
View
B+
Retailer 3
-
£940 GBP
$1,259 USD
View
B+
Retailer 4
-
£966 GBP
$1,295 USD
View
Final sale: no returns
Retailer 5
-
£1,002 GBP
$1,342 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
£1,002 GBP
$1,342 USD
View
B
Retailer 7
-
£1,592 GBP
$2,133 USD
View
B
Retailer 8
-
£1,878 GBP
$2,516 USD
View
B
Retailer 9
-
£1,973 GBP
$2,644 USD
View
Most Expensive
B
MOH London
LG447098397 · Oct 27
£3,223 GBP
View
9 more retailers have this diamond
Prices start from £634 GBPSave up to £2,588 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