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Marquise|Lab Grown|IGI

1.02ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG640441558

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG640441558

Diamond specifications and retailer prices

From £173 GBP
As of November 4, 2026
Save £872 GBP (83%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,065 GBP at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

About this 1.02ct lab-grown marquise diamond

This 1.02ct 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 LG640441558 or 640441558. Listed at 24 retailers as of November 4, 2026, with a 505% 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

1.02
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG640441558
Dimensions10.27 × 5.27 × 3.31 mm
L/W Ratio1.95
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
10.27 mm5.27 mm1.02 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG640441558
Side View
Table 58.0%Crown 36.4°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.8%

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: £1,065 GBP|Low: £173 GBP|High: £1,319 GBP|Avg: £524 GBP
Novita Diamonds
Retailer 2
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November 5, 2026
Retailer 6£173 GBP
Retailer 21£193 GBP
Retailer 3£201 GBP
Retailer 4£214 GBP
Retailer 5£221 GBP
Retailer 12£256 GBP
Retailer 11£304 GBP
Retailer 23£360 GBP
Retailer 20£370 GBP
Retailer 9£387 GBP
Retailer 2£400 GBP
Retailer 14£422 GBP
Retailer 16£468 GBP
Retailer 24£490 GBP
Retailer 19£525 GBP
Retailer 17£606 GBP
Retailer 7£689 GBP
Retailer 8£692 GBP
Retailer 15£727 GBP
Retailer 18£786 GBP
Retailer 13£856 GBP
Retailer 25£919 GBP
Retailer 10£963 GBP
Retailer 22£1,044 GBP
Novita Diamonds£1,065 GBP

31 data points across 25 retailers

24 retailers£173 GBP to £1,044 GBP

A+
Cheapest Retailer
-
£173 GBP
A
Retailer 2
-
£193 GBP
View
Final sale: no returns
A
Retailer 3
-
£201 GBP
View
A
Retailer 4
-
£214 GBP
View
A
Retailer 5
-
£256 GBP
View
A
Retailer 6
-
£304 GBP
View
A
Retailer 7
-
£360 GBP
View
A
Retailer 8
-
£370 GBP
View
A
Retailer 9
-
£387 GBP
View
A
Retailer 10
-
£400 GBP
View
A
Retailer 11
-
£422 GBP
View
B+
Retailer 12
-
£468 GBP
View
B+
Retailer 13
-
£490 GBP
View
B+
Retailer 14
-
£525 GBP
View
B+
Retailer 15
-
£606 GBP
View
B+
Retailer 16
-
£689 GBP
View
B+
Retailer 17
-
£692 GBP
View
B+
Retailer 18
-
£727 GBP
View
B
Retailer 19
-
£786 GBP
View
B+
Retailer 20
-
£856 GBP
View
Retailer 21
-
£919 GBP
View
Price last confirmed 8 days ago
B
Retailer 22
-
£963 GBP
View
B
Retailer 23
-
£1,044 GBP
View
Most Expensive
Novita Diamonds
cert_640441558 · Oct 8
£1,065 GBP
A$2,211 AUD
View
Price last confirmed 28 days ago
23 more retailers have this diamond
Prices start from £173 GBPSave up to £872 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+
1.02ct Marquise
£173 GBP