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Marquise|Lab Grown|IGI

1.03ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG811619694

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG811619694

Diamond specifications and retailer prices

From £189 GBP
$253 USD
As of November 2, 2026
Save £1,027 GBP (84%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,215 GBP at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 1.03ct lab-grown marquise diamond

This 1.03ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811619694 or 811619694. Listed at 24 retailers as of November 2, 2026, with prices from £189 to £1,215, a £1,027 spread on the same certified stone. Brilliant Earth lists it at £1,215. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.03
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811619694
Dimensions10.43 × 5.27 × 3.30 mm
L/W Ratio1.98
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
10.43 mm5.27 mm1.03 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811619694
Side View
Table 58.0%Crown 34.3°Girdle: THN-STKPavilion 40.5°Culet: NoneDepth 62.6%

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 2
Current: £1,215 GBP|Low: £181 GBP|High: £1,864 GBP|Avg: £585 GBP|-34.8%
Brilliant Earth
Retailer 2
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Retailer 18
November 3, 2026
Retailer 6£189 GBP
Retailer 3£218 GBP
Retailer 4£233 GBP
Retailer 5£233 GBP
Retailer 13£241 GBP
Retailer 8£315 GBP
Retailer 18£317 GBP
Retailer 14£403 GBP
Retailer 17£425 GBP
Retailer 11£445 GBP
Retailer 16£450 GBP
Retailer 2£572 GBP
Retailer 12£595 GBP
Retailer 7£751 GBP
Retailer 10£909 GBP
Retailer 15£937 GBP
Retailer 9£1,082 GBP
Brilliant Earth£1,215 GBP

38 data points across 18 retailers

24 retailers£189 GBP to £1,215 GBP

A
Cheapest Retailer
-
£189 GBP
$253 USD
A
Retailer 2
-
£211 GBP
$283 USD
View
Final sale: no returns
A
Retailer 3
-
£218 GBP
$293 USD
View
Retailer 4
-
£233 GBP
$313 USD
View
Price last confirmed 9 days ago
A
Retailer 5
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£233 GBP
$313 USD
View
A
Retailer 6
-
£241 GBP
View
A
Retailer 7
-
£315 GBP
$422 USD
View
A
Retailer 8
-
£317 GBP
$425 USD
View
A
Retailer 9
-
£403 GBP
ZAR 8,741 ZAR
View
A
Retailer 10
-
£416 GBP
$558 USD
View
A
Retailer 11
-
£425 GBP
€543 EUR
View
A
Retailer 12
-
£437 GBP
$586 USD
View
A
Retailer 13
-
£445 GBP
View
A
Retailer 14
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£450 GBP
A$928 AUD
View
B+
Retailer 15
-
£572 GBP
A$1,181 AUD
View
B+
Retailer 16
-
£595 GBP
$798 USD
View
B+
Retailer 17
-
£628 GBP
SGD 1,139 SGD
View
B+
Retailer 18
-
£751 GBP
$1,007 USD
View
B
Retailer 19
-
£790 GBP
$1,059 USD
View
B
Retailer 20
-
£909 GBP
View
B+
Retailer 21
-
£937 GBP
View
B
Retailer 22
-
£1,015 GBP
$1,362 USD
View
Retailer 23
-
£1,082 GBP
A$2,233 AUD
View
Price last confirmed 29 days ago
Most Expensive
B
Brilliant Earth
20986856A · Nov 3
£1,215 GBP
$1,630 USD
View
23 more retailers have this diamond
Prices start from £189 GBPSave up to £1,027 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
£189 GBP