CaratHunter
Plans
Oval|Lab Grown|IGI

1.70ct H VS1 Oval Lab Grown Diamond

ID • H/VS1 • IGI LG847655686

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG847655686

Diamond specifications and retailer prices

From £252 GBP
$338 USD
As of October 29, 2026
Save £787 GBP (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,263 GBP 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 H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG847655686 or 847655686. Listed at 11 retailers as of October 29, 2026, with a 312% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
H
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.9°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG847655686
Dimensions9.03 × 7.05 × 4.29 mm
L/W Ratio1.28
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.03 mm7.05 mm1.70 ctH / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG847655686
Side View
Table 63.0%Crown 30.9°Girdle: MED-STKPavilion 41.7°Culet: NoneDepth 60.9%

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: £1,263 GBP|Low: £420 GBP|High: £1,263 GBP|Avg: £742 GBP
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 31, 2026
Retailer 3£420 GBP
Retailer 6£425 GBP
Retailer 7£482 GBP
Retailer 10£505 GBP
Retailer 5£538 GBP
Retailer 4£730 GBP
Retailer 2£919 GBP
Retailer 8£1,002 GBP
Retailer 9£1,039 GBP
MOH London£1,263 GBP

7 data points across 10 retailers

11 retailers£252 GBP to £1,039 GBP

A
Cheapest Retailer
-
£252 GBP
$338 USD
A
Retailer 2
-
£420 GBP
View
A
Retailer 3
-
£425 GBP
$570 USD
View
A
Retailer 4
-
£482 GBP
$646 USD
View
B+
Retailer 5
-
£505 GBP
$677 USD
View
B+
Retailer 6
-
£538 GBP
ZAR 11,652 ZAR
View
B+
Retailer 7
-
£730 GBP
A$1,505 AUD
View
B
Retailer 8
-
£919 GBP
$1,231 USD
View
B
Retailer 9
-
£1,002 GBP
SGD 1,815 SGD
View
B
Retailer 10
-
£1,039 GBP
$1,392 USD
View
Most Expensive
MOH London
LG847655686 · Oct 21
£1,263 GBP
View
Price last confirmed 10 days ago
10 more retailers have this diamond
Prices start from £252 GBPSave up to £787 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
£252 GBP