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Oval|Lab Grown|IGI

1.70ct I SI2 Oval Lab Grown Diamond

ID • I/SI2 • IGI LG447000418

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG447000418

Diamond specifications and retailer prices

From £709 GBP
$950 USD
As of October 29, 2026
Save £2,799 GBP (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,508 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447000418 or 447000418. Listed at 11 retailers as of October 27, 2026, with prices from £709 to £3,508, a £2,799 spread on the same certified stone. MOH London lists it at £3,508. 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
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447000418
Dimensions9.09 × 6.84 × 4.33 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.09 mm6.84 mm1.70 ctI / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447000418
Side View
Table 57.5%Crown 35.8°Girdle: STK-THKPavilion 41.1°Culet: NoneDepth 63.3%

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: £3,508 GBP|Low: £709 GBP|High: £3,551 GBP|Avg: £1,587 GBP|-0.9%
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 30, 2026
Retailer 7£709 GBP
Retailer 6£940 GBP
Retailer 11£1,022 GBP
Retailer 12£1,052 GBP
Retailer 8£1,090 GBP
Retailer 13£1,090 GBP
Retailer 4£1,515 GBP
Retailer 2£1,627 GBP
Retailer 9£1,728 GBP
Retailer 3£2,032 GBP
Retailer 10£2,044 GBP
Retailer 5£2,441 GBP
MOH London£3,508 GBP

38 data points across 13 retailers

11 retailers£709 GBP to £3,508 GBP

A
Cheapest Retailer
-
£709 GBP
$950 USD
B+
Retailer 2
-
£940 GBP
$1,260 USD
View
A
Retailer 3
-
£1,022 GBP
$1,370 USD
View
A
Retailer 4
-
£1,052 GBP
$1,410 USD
View
Final sale: no returns
Retailer 5
-
£1,090 GBP
$1,461 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
£1,090 GBP
$1,461 USD
View
B+
Retailer 7
-
£1,627 GBP
View
B
Retailer 8
-
£1,728 GBP
$2,315 USD
View
B
Retailer 9
-
£2,032 GBP
$2,723 USD
View
B
Retailer 10
-
£2,044 GBP
$2,739 USD
View
Most Expensive
B
MOH London
LG447000418 · Oct 27
£3,508 GBP
View
10 more retailers have this diamond
Prices start from £709 GBPSave up to £2,799 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
£709 GBP