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Marquise|Lab Grown|IGI

1.03ct D VVS1 Marquise Lab Grown Diamond

EX • D/VVS1 • IGI LG823635193

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG823635193

Diamond specifications and retailer prices

From £145 GBP
$194 USD
As of October 30, 2026
Save £1,258 GBP (90%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £1,403 GBP at Queensmith · As of October 27, 2026
View at Queensmith

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 VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG823635193 or 823635193. Listed at 23 retailers as of October 27, 2026, with prices from £145 to £1,403, a £1,258 spread on the same certified stone. Queensmith lists it at £1,403. 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
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823635193
Dimensions10.68 × 5.30 × 3.25 mm
L/W Ratio2.02
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
10.68 mm5.30 mm1.03 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823635193
Side View
Table 59.0%Crown 34.3°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 61.3%

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: £310 GBP|Low: £140 GBP|High: £879 GBP|Avg: £438 GBP|+0.5%
Retailer 1
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Retailer 21
November 1, 2026
Retailer 6£145 GBP
Retailer 11£162 GBP
Retailer 5£168 GBP
Retailer 9£179 GBP
Retailer 18£201 GBP
Retailer 12£205 GBP
Retailer 7£246 GBP
Retailer 21£305 GBP
Retailer 1£310 GBP
Retailer 15£327 GBP
Retailer 14£329 GBP
Retailer 20£438 GBP
Retailer 19£488 GBP
Retailer 10£577 GBP
Retailer 3£578 GBP
Retailer 16£605 GBP
Retailer 13£617 GBP
Retailer 17£694 GBP
Retailer 2£843 GBP
Retailer 4£851 GBP
Retailer 8£876 GBP

31 data points across 21 retailers

23 retailers£145 GBP to £1,403 GBP

A
Cheapest Retailer
-
£145 GBP
$194 USD
A
Retailer 2
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£162 GBP
$217 USD
View
Final sale: no returns
A
Retailer 3
-
£168 GBP
$225 USD
View
Retailer 4
-
£179 GBP
$240 USD
View
Price last confirmed 16 days ago
A
Retailer 5
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£179 GBP
$240 USD
View
A
Retailer 6
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£201 GBP
HK$2,100 HKD
View
A
Retailer 7
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£205 GBP
View
A
Retailer 8
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£246 GBP
$330 USD
View
Retailer 9
-
£305 GBP
€389 EUR
View
Price last confirmed 7 days ago
A
Retailer 10
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£310 GBP
ZAR 6,702 ZAR
View
A
Retailer 11
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£327 GBP
View
A
Retailer 12
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£329 GBP
$441 USD
View
B+
Retailer 13
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£438 GBP
A$902 AUD
View
B+
Retailer 14
-
£488 GBP
SGD 884 SGD
View
B
Retailer 15
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£577 GBP
$773 USD
View
B
Retailer 16
-
£578 GBP
$775 USD
View
B
Retailer 17
-
£605 GBP
$810 USD
View
B
Retailer 18
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£617 GBP
$826 USD
View
B
Retailer 19
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£694 GBP
A$1,430 AUD
View
B
Retailer 20
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£843 GBP
View
B
Retailer 21
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£851 GBP
$1,140 USD
View
Price last confirmed 7 days ago
B
Retailer 22
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£876 GBP
$1,174 USD
View
Most Expensive
B
Queensmith
LG823635193 · Oct 27
£1,403 GBP
View
22 more retailers have this diamond
Prices start from £145 GBPSave up to £1,258 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
£145 GBP