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Round|Lab Grown|IGI

1.70ct E VS2 Round Lab Grown Diamond

EX • E/VS2 • IGI LG704579057

Shape and cutting style on the report: Round brilliant

Certificate IGI LG704579057

Diamond specifications and retailer prices

From £191 GBP
$256 USD
As of October 29, 2026
Save £1,242 GBP (87%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £1,433 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.7ct lab-grown round diamond

This 1.7ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG704579057 or 704579057. Listed at 22 retailers as of October 29, 2026, with prices from £191 to £1,433, a £1,242 spread on the same certified stone. Brilliant Earth lists it at £1,433. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
E
Colour
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG704579057
Dimensions7.60 × 7.54 × 4.78 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.60 mm7.54 mm1.70 ctE / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG704579057
Side View
Table 57.0%Crown 36.4°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.1%

Caratlytics Score

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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: £1,433 GBP|Low: £184 GBP|High: £1,478 GBP|Avg: £582 GBP|-3.0%
Brilliant Earth
Retailer 2
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Retailer 20
October 31, 2026
Retailer 18£191 GBP
Retailer 6£214 GBP
Retailer 20£222 GBP
Retailer 8£237 GBP
Retailer 19£237 GBP
Retailer 9£319 GBP
Retailer 5£358 GBP
Retailer 2£377 GBP
Retailer 13£378 GBP
Retailer 7£421 GBP
Retailer 10£440 GBP
Retailer 14£452 GBP
Retailer 15£687 GBP
Retailer 17£729 GBP
Retailer 12£801 GBP
Retailer 4£934 GBP
Retailer 16£956 GBP
Retailer 11£959 GBP
Retailer 3£1,025 GBP
Brilliant Earth£1,433 GBP

39 data points across 20 retailers

22 retailers£191 GBP to £1,433 GBP

A
Cheapest Retailer
-
£191 GBP
$256 USD
A
Retailer 2
-
£214 GBP
$287 USD
View
Final sale: no returns
A
Retailer 3
-
£222 GBP
$297 USD
View
A
Retailer 4
-
£237 GBP
$318 USD
View
A
Retailer 5
-
£237 GBP
$318 USD
View
B+
Retailer 6
-
£319 GBP
$428 USD
View
A
Retailer 7
-
£358 GBP
$480 USD
View
A
Retailer 8
-
£377 GBP
€481 EUR
View
A
Retailer 9
-
£378 GBP
View
B+
Retailer 10
-
£421 GBP
$564 USD
View
B+
Retailer 11
-
£440 GBP
$589 USD
View
B+
Retailer 12
-
£452 GBP
View
B+
Retailer 13
-
£687 GBP
$920 USD
View
B
Retailer 14
-
£729 GBP
$977 USD
View
Retailer 15
-
£734 GBP
$984 USD
View
Price last confirmed 111 days ago
B
Retailer 16
-
£763 GBP
$1,022 USD
View
B
Retailer 17
-
£801 GBP
$1,074 USD
View
B
Retailer 18
-
£934 GBP
$1,251 USD
View
B
Retailer 19
-
£956 GBP
View
B
Retailer 20
-
£978 GBP
$1,311 USD
View
B
Retailer 21
-
£1,025 GBP
$1,374 USD
View
Most Expensive
B
Brilliant Earth
16066926A · Oct 29
£1,433 GBP
$1,920 USD
View
21 more retailers have this diamond
Prices start from £191 GBPSave up to £1,242 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 Round
£191 GBP