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Marquise|Lab Grown|IGI

1.03ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG726537706

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG726537706

Diamond specifications and retailer prices

From £213 GBP
$285 USD
As of October 30, 2026
Save £1,317 GBP (86%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £1,530 GBP at Brilliant Earth · As of October 31, 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 LG726537706 or 726537706. Listed at 25 retailers as of October 30, 2026, with prices from £213 to £1,530, a £1,317 spread on the same certified stone. Brilliant Earth lists it at £1,530. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.6°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG726537706
Dimensions10.45 × 5.25 × 3.29 mm
L/W Ratio1.99
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
10.45 mm5.25 mm1.03 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG726537706
Side View
Table 58.0%Crown 32.6°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.7%

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 30
Current: £1,530 GBP|Low: £204 GBP|High: £1,866 GBP|Avg: £632 GBP|-18.0%
Brilliant Earth
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
Retailer 15
Retailer 16
November 1, 2026
Retailer 7£213 GBP
Retailer 8£247 GBP
Retailer 4£264 GBP
Retailer 6£264 GBP
Retailer 9£272 GBP
Retailer 16£358 GBP
Retailer 3£448 GBP
Retailer 15£454 GBP
Retailer 10£467 GBP
Retailer 13£484 GBP
Retailer 11£637 GBP
Retailer 14£643 GBP
Retailer 5£849 GBP
Retailer 2£1,059 GBP
Retailer 12£1,078 GBP
Brilliant Earth£1,530 GBP

36 data points across 16 retailers

25 retailers£213 GBP to £1,530 GBP

A
Cheapest Retailer
-
£213 GBP
$285 USD
A
Retailer 2
-
£238 GBP
$319 USD
View
Final sale: no returns
A
Retailer 3
-
£247 GBP
$331 USD
View
A
Retailer 4
-
£264 GBP
$354 USD
View
Retailer 5
-
£264 GBP
$354 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
£272 GBP
View
A
Retailer 7
-
£296 GBP
HK$3,100 HKD
View
A
Retailer 8
-
£357 GBP
$478 USD
View
A
Retailer 9
-
£358 GBP
$480 USD
View
A
Retailer 10
-
£444 GBP
$595 USD
View
A
Retailer 11
-
£446 GBP
$598 USD
View
A
Retailer 12
-
£448 GBP
€572 EUR
View
A
Retailer 13
-
£454 GBP
ZAR 9,824 ZAR
View
A
Retailer 14
-
£467 GBP
View
B+
Retailer 15
-
£484 GBP
A$998 AUD
View
B+
Retailer 16
-
£637 GBP
$853 USD
View
B+
Retailer 17
-
£643 GBP
A$1,325 AUD
View
B+
Retailer 18
-
£709 GBP
SGD 1,283 SGD
View
Retailer 19
-
£811 GBP
$1,087 USD
View
Price last confirmed 11 days ago
B+
Retailer 20
-
£849 GBP
$1,138 USD
View
B
Retailer 21
-
£886 GBP
$1,187 USD
View
B+
Retailer 22
-
£1,059 GBP
View
B+
Retailer 23
-
£1,078 GBP
A$2,222 AUD
View
B
Retailer 24
-
£1,094 GBP
$1,466 USD
View
Most Expensive
B
Brilliant Earth
15880070A · Oct 31
£1,530 GBP
$2,050 USD
View
24 more retailers have this diamond
Prices start from £213 GBPSave up to £1,317 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
£213 GBP