CaratHunter
Plans
Marquise|Lab Grown|IGI

1.02ct D SI1 Marquise Lab Grown Diamond

ID • D/SI1 • IGI LG778665935

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG778665935

Diamond specifications and retailer prices

From £118 GBP
As of November 4, 2026
Save £671 GBP (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £789 GBP at Reve Diamonds · As of November 6, 2026
View at Reve 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778665935 or 778665935. Listed at 17 retailers as of November 4, 2026, with prices from £118 to £789, a £671 spread on the same certified stone. Reve Diamonds lists it at £789. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.02
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778665935
Dimensions10.01 × 5.23 × 3.31 mm
L/W Ratio1.91
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.01 mm5.23 mm1.02 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778665935
Side View
Table 60.0%Crown 32.8°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 63.3%

Caratlytics Score

How it works →
A
Excellent
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: £174 GBP|Low: £114 GBP|High: £789 GBP|Avg: £324 GBP|-1.7%
Retailer 1
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
Reve Diamonds
November 6, 2026
Retailer 13£118 GBP
Retailer 12£132 GBP
Retailer 5£137 GBP
Retailer 2£146 GBP
Retailer 11£146 GBP
Retailer 1£174 GBP
Retailer 7£255 GBP
Retailer 4£265 GBP
Retailer 9£278 GBP
Retailer 6£327 GBP
Retailer 14£401 GBP
Retailer 3£471 GBP
Retailer 10£497 GBP
Retailer 8£683 GBP
Reve Diamonds£789 GBP

45 data points across 15 retailers

17 retailers£118 GBP to £789 GBP

A
Cheapest Retailer
-
£118 GBP
A
Retailer 2
-
£132 GBP
View
Final sale: no returns
A
Retailer 3
-
£137 GBP
View
Retailer 4
-
£146 GBP
View
Price last confirmed 12 days ago
A
Retailer 5
-
£146 GBP
View
A
Retailer 6
-
£174 GBP
View
A
Retailer 7
-
£244 GBP
View
A
Retailer 8
-
£255 GBP
View
B+
Retailer 9
-
£265 GBP
View
B+
Retailer 10
-
£278 GBP
View
B+
Retailer 11
-
£327 GBP
View
Retailer 12
-
£401 GBP
View
Price last confirmed 9 days ago
B
Retailer 13
-
£471 GBP
View
B
Retailer 14
-
£497 GBP
View
B
Retailer 15
-
£511 GBP
View
B
Retailer 16
-
£683 GBP
View
Most Expensive
B
Reve Diamonds
96A2A557C · Nov 6
£789 GBP
$1,063 USD
View
16 more retailers have this diamond
Prices start from £118 GBPSave up to £671 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
£118 GBP