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Oval|Lab Grown|IGI

1.70ct J VS1 Oval Lab Grown Diamond

ID • J/VS1 • IGI LG445039257

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445039257

Diamond specifications and retailer prices

From £642 GBP
$860 USD
As of October 29, 2026
Save £3,988 GBP (86%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £4,630 GBP at MOH London · As of October 29, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG445039257 or 445039257. Listed at 12 retailers as of October 29, 2026, with prices from £642 to £4,630, a £3,988 spread on the same certified stone. MOH London lists it at £4,630. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
J
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445039257
Dimensions9.40 × 6.66 × 4.27 mm
L/W Ratio1.41
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.40 mm6.66 mm1.70 ctJ / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445039257
Side View
Table 57.0%Crown 34.8°Girdle: STK-THKPavilion 41.5°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 29
Current: £4,630 GBP|Low: £642 GBP|High: £4,667 GBP|Avg: £2,586 GBP|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 3£642 GBP
Retailer 6£1,557 GBP
Retailer 7£1,739 GBP
Retailer 8£2,136 GBP
Retailer 5£2,527 GBP
Retailer 4£2,712 GBP
Retailer 2£2,964 GBP
Retailer 9£4,617 GBP
MOH London£4,630 GBP

19 data points across 9 retailers

12 retailers£642 GBP to £4,630 GBP

A
Cheapest Retailer
-
£642 GBP
$860 USD
A
Retailer 2
-
£1,390 GBP
$1,863 USD
View
B+
Retailer 3
-
£1,512 GBP
$2,026 USD
View
B+
Retailer 4
-
£1,557 GBP
$2,086 USD
View
Final sale: no returns
Retailer 5
-
£1,613 GBP
$2,161 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
£1,613 GBP
$2,161 USD
View
B+
Retailer 7
-
£1,739 GBP
$2,330 USD
View
B
Retailer 8
-
£2,527 GBP
$3,386 USD
View
B
Retailer 9
-
£2,712 GBP
$3,634 USD
View
B
Retailer 10
-
£2,964 GBP
ZAR 64,164 ZAR
View
B
Retailer 11
-
£3,023 GBP
$4,050 USD
View
Most Expensive
B
MOH London
LG445039257 · Oct 29
£4,630 GBP
View
11 more retailers have this diamond
Prices start from £642 GBPSave up to £3,988 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
£642 GBP