Marquise|Lab Grown|IGI

1.03ct E VS1 Marquise Lab Grown Diamond

EX • E/VS1 • IGI LG797621329

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG797621329

Diamond specifications and retailer prices

From £250 GBP
$335 USD
As of October 23, 2026
Save £63 GBP (20%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £851 GBP at Reve Diamonds · As of October 21, 2026
View at Reve Diamonds

About this 1.03ct lab-grown marquise diamond

This 1.03ct lab-grown marquise sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG797621329 or 797621329. Listed at 20 retailers as of October 23, 2026, with a 25% 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

1.03
Carat
E
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG797621329
Dimensions10.14 × 5.33 × 10.14 mm
L/W Ratio1.90
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
10.14 mm5.33 mm1.03 ctE / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG797621329
Side View
Table 57.0%Crown 34.6°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 64.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 23
Current: £313 GBP|Low: £137 GBP|High: £922 GBP|Avg: £397 GBP|+9.0%
Retailer 1
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Retailer 20
Reve Diamonds
October 25, 2026
Retailer 3£137 GBP
Retailer 7£152 GBP
Retailer 16£159 GBP
Retailer 8£169 GBP
Retailer 19£169 GBP
Retailer 12£212 GBP
Retailer 9£230 GBP
Retailer 17£250 GBP
Retailer 18£289 GBP
Retailer 14£297 GBP
Retailer 1£313 GBP
Retailer 6£405 GBP
Retailer 2£417 GBP
Retailer 15£429 GBP
Retailer 10£463 GBP
Retailer 13£470 GBP
Retailer 4£545 GBP
Retailer 11£586 GBP
Retailer 5£642 GBP
Retailer 20£797 GBP
Reve Diamonds£851 GBP

22 data points across 21 retailers

20 retailers£250 GBP to £313 GBP

Retailer 1
-
£137 GBP
$183 USD
Price last confirmed 9 days ago
Retailer 2
-
£159 GBP
$213 USD
View
Price last confirmed 9 days ago
Retailer 3
-
£169 GBP
$227 USD
View
Price last confirmed 14 days ago
Retailer 4
-
£169 GBP
$227 USD
View
Price last confirmed 8 days ago
Retailer 5
-
£212 GBP
View
Price last confirmed 8 days ago
Retailer 6
-
£230 GBP
$308 USD
View
Price last confirmed 9 days ago
A
Retailer 7
-
£250 GBP
$335 USD
View
Retailer 8
-
£289 GBP
ZAR 6,247 ZAR
View
Price last confirmed 12 days ago
Retailer 9
-
£297 GBP
View
Price last confirmed 8 days ago
A
Retailer 10
-
£313 GBP
€400 EUR
View
Retailer 11
-
£405 GBP
$542 USD
View
Price last confirmed 9 days ago
Retailer 12
-
£417 GBP
A$860 AUD
View
Price last confirmed 12 days ago
Retailer 13
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£429 GBP
$575 USD
View
Price last confirmed 8 days ago
Retailer 14
-
£463 GBP
SGD 838 SGD
View
Price last confirmed 9 days ago
Retailer 15
-
£470 GBP
A$968 AUD
View
Price last confirmed 79 days ago
Retailer 16
-
£545 GBP
$730 USD
View
Price last confirmed 8 days ago
Retailer 17
-
£586 GBP
$785 USD
View
Price last confirmed 9 days ago
Retailer 18
-
£642 GBP
$860 USD
View
Price last confirmed 8 days ago
Retailer 19
-
£797 GBP
View
Price last confirmed 12 days ago
Most Expensive
Reve Diamonds
EFAD2E309 · Oct 21
£851 GBP
$1,140 USD
View
Price last confirmed 9 days ago
19 more retailers have this diamond
Prices start from £250 GBPSave up to £63 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
1.03ct Marquise
£250 GBP