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Marquise|Lab Grown|IGI

1.05ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG643452185

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG643452185

Diamond specifications and retailer prices

From £177 GBP
As of November 4, 2026
Save £897 GBP (84%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £1,096 GBP at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

About this 1.05ct lab-grown marquise diamond

This 1.05ct 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 LG643452185 or 643452185. Listed at 26 retailers as of November 4, 2026, with a 507% 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

1.05
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG643452185
Dimensions10.71 × 5.30 × 3.31 mm
L/W Ratio2.02
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
10.71 mm5.30 mm1.05 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG643452185
Side View
Table 59.0%Crown 34.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
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 4
Current: £1,096 GBP|Low: £177 GBP|High: £1,889 GBP|Avg: £589 GBP
Novita Diamonds
Retailer 2
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November 5, 2026
Retailer 5£177 GBP
Retailer 19£198 GBP
Retailer 24£206 GBP
Retailer 4£220 GBP
Retailer 11£256 GBP
Retailer 10£311 GBP
Retailer 23£368 GBP
Retailer 18£379 GBP
Retailer 8£392 GBP
Retailer 2£412 GBP
Retailer 12£445 GBP
Retailer 15£482 GBP
Retailer 21£495 GBP
Retailer 13£539 GBP
Retailer 16£621 GBP
Retailer 6£707 GBP
Retailer 7£710 GBP
Retailer 14£745 GBP
Retailer 17£810 GBP
Retailer 20£881 GBP
Retailer 3£948 GBP
Retailer 9£977 GBP
Retailer 22£1,074 GBP
Novita Diamonds£1,096 GBP

34 data points across 24 retailers

26 retailers£177 GBP to £1,074 GBP

A+
Cheapest Retailer
-
£177 GBP
A
Retailer 2
-
£198 GBP
View
Final sale: no returns
A
Retailer 3
-
£206 GBP
View
A
Retailer 4
-
£220 GBP
View
A
Retailer 5
-
£256 GBP
View
A
Retailer 6
-
£311 GBP
View
A
Retailer 7
-
£368 GBP
View
A
Retailer 8
-
£379 GBP
View
A
Retailer 9
-
£392 GBP
View
Retailer 10
-
£406 GBP
View
Price last confirmed 21 days ago
A
Retailer 11
-
£412 GBP
View
A
Retailer 12
-
£445 GBP
View
B+
Retailer 13
-
£482 GBP
View
B+
Retailer 14
-
£495 GBP
View
B+
Retailer 15
-
£539 GBP
View
B+
Retailer 16
-
£621 GBP
View
B+
Retailer 17
-
£707 GBP
View
B+
Retailer 18
-
£710 GBP
View
B+
Retailer 19
-
£745 GBP
View
B
Retailer 20
-
£810 GBP
View
B+
Retailer 21
-
£881 GBP
View
Retailer 22
-
£948 GBP
View
Price last confirmed 8 days ago
B
Retailer 23
-
£977 GBP
View
Retailer 24
-
£983 GBP
View
Price last confirmed 88 days ago
B
Retailer 25
-
£1,074 GBP
View
Most Expensive
Novita Diamonds
cert_643452185 · Oct 8
£1,096 GBP
A$2,277 AUD
View
Price last confirmed 27 days ago
25 more retailers have this diamond
Prices start from £177 GBPSave up to £897 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+
1.05ct Marquise
£177 GBP