Marquise|Lab Grown|IGI

0.70ct E IF Marquise Lab Grown Diamond

EX • E/IF • IGI LG817670770

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG817670770

Diamond specifications and retailer prices

From £173 GBP
$232 USD
As of November 1, 2026
Save £735 GBP (81%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £908 GBP at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 0.7ct lab-grown marquise diamond

This 0.7ct lab-grown marquise sits in the half to three-quarter carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG817670770 or 817670770. Listed at 20 retailers as of November 1, 2026, with prices from £173 to £908, a £735 spread on the same certified stone. Reve Diamonds lists it at £908. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.70
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817670770
Dimensions9.13 × 4.64 × 2.93 mm
L/W Ratio1.97
Girdle conditionFaceted
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
9.13 mm4.64 mm0.70 ctE / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817670770
Side View
Table 60.0%Crown 34.9°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: Nov 1
Current: £354 GBP|Low: £164 GBP|High: £908 GBP|Avg: £394 GBP|+11.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Reve Diamonds
November 3, 2026
Retailer 13£173 GBP
Retailer 5£182 GBP
Retailer 11£270 GBP
Retailer 3£279 GBP
Retailer 2£309 GBP
Retailer 12£339 GBP
Retailer 9£349 GBP
Retailer 1£354 GBP
Retailer 6£387 GBP
Retailer 8£490 GBP
Retailer 10£491 GBP
Retailer 4£507 GBP
Retailer 14£657 GBP
Retailer 7£769 GBP
Reve Diamonds£908 GBP

37 data points across 15 retailers

20 retailers£173 GBP to £908 GBP

Retailer 1
-
£147 GBP
$197 USD
Price last confirmed 25 days ago
Retailer 2
-
£171 GBP
$229 USD
View
Price last confirmed 35 days ago
A
Retailer 3
-
£173 GBP
$232 USD
View
Final sale: no returns
Retailer 4
-
£180 GBP
$241 USD
View
Price last confirmed 38 days ago
Retailer 5
-
£182 GBP
$244 USD
View
Price last confirmed 21 days ago
Retailer 6
-
£182 GBP
$244 USD
View
Price last confirmed 30 days ago
A
Retailer 7
-
£270 GBP
$362 USD
View
A
Retailer 8
-
£279 GBP
$375 USD
View
Retailer 9
-
£309 GBP
€395 EUR
View
Price last confirmed 8 days ago
A
Retailer 10
-
£339 GBP
$455 USD
View
A
Retailer 11
-
£349 GBP
ZAR 7,561 ZAR
View
A
Retailer 12
-
£354 GBP
View
Retailer 13
-
£387 GBP
$519 USD
View
Price last confirmed 9 days ago
B+
Retailer 14
-
£490 GBP
A$1,012 AUD
View
B+
Retailer 15
-
£491 GBP
$659 USD
View
B+
Retailer 16
-
£507 GBP
$680 USD
View
Retailer 17
-
£586 GBP
$786 USD
View
Price last confirmed 33 days ago
B+
Retailer 18
-
£657 GBP
$881 USD
View
B
Retailer 19
-
£769 GBP
View
Most Expensive
B
Reve Diamonds
0EBCC2A5F · Nov 1
£908 GBP
$1,218 USD
View
19 more retailers have this diamond
Prices start from £173 GBPSave up to £735 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
0.70ct Marquise
£173 GBP