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Marquise|Lab Grown|IGI

1.03ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG838619319

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG838619319

Diamond specifications and retailer prices

From £180 GBP
$242 USD
As of November 2, 2026
Save £1,050 GBP (85%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,230 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 LG838619319 or 838619319. Listed at 20 retailers as of November 2, 2026, with prices from £180 to £1,230, a £1,050 spread on the same certified stone. Brilliant Earth lists it at £1,230. 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 angle33.2°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG838619319
Dimensions10.70 × 5.23 × 3.27 mm
L/W Ratio2.05
Girdle conditionFaceted
Culet sizeNone
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
10.70 mm5.23 mm1.03 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG838619319
Side View
Table 58.0%Crown 33.2°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 62.5%

Caratlytics Score

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A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: £1,230 GBP|Low: £179 GBP|High: £1,238 GBP|Avg: £447 GBP|+1.2%
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
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Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 3, 2026
Retailer 18£180 GBP
Retailer 8£201 GBP
Retailer 19£209 GBP
Retailer 11£221 GBP
Retailer 12£223 GBP
Retailer 16£230 GBP
Retailer 9£306 GBP
Retailer 10£373 GBP
Retailer 3£386 GBP
Retailer 5£396 GBP
Retailer 14£423 GBP
Retailer 7£434 GBP
Retailer 13£547 GBP
Retailer 17£567 GBP
Retailer 6£718 GBP
Retailer 2£756 GBP
Retailer 15£894 GBP
Retailer 4£989 GBP
Brilliant Earth£1,230 GBP

23 data points across 19 retailers

20 retailers£180 GBP to £1,230 GBP

A+
Cheapest Retailer
-
£180 GBP
$242 USD
A
Retailer 2
-
£201 GBP
$270 USD
View
Final sale: no returns
A
Retailer 3
-
£209 GBP
$280 USD
View
Retailer 4
-
£221 GBP
$297 USD
View
Price last confirmed 9 days ago
A
Retailer 5
-
£223 GBP
$299 USD
View
A
Retailer 6
-
£230 GBP
View
A
Retailer 7
-
£306 GBP
$410 USD
View
Retailer 8
-
£373 GBP
€477 EUR
View
Price last confirmed 7 days ago
A
Retailer 9
-
£386 GBP
ZAR 8,358 ZAR
View
A
Retailer 10
-
£396 GBP
$531 USD
View
A
Retailer 11
-
£423 GBP
View
A
Retailer 12
-
£434 GBP
$582 USD
View
B+
Retailer 13
-
£547 GBP
A$1,128 AUD
View
B+
Retailer 14
-
£567 GBP
$760 USD
View
B+
Retailer 15
-
£718 GBP
$963 USD
View
B+
Retailer 16
-
£756 GBP
$1,014 USD
View
B+
Retailer 17
-
£894 GBP
View
B+
Retailer 18
-
£989 GBP
$1,326 USD
View
Retailer 19
-
£1,082 GBP
A$2,233 AUD
View
Price last confirmed 26 days ago
Most Expensive
B
Brilliant Earth
21690536A · Nov 3
£1,230 GBP
$1,650 USD
View
19 more retailers have this diamond
Prices start from £180 GBPSave up to £1,050 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
£180 GBP