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Round|Lab Grown|IGI

0.71ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG700578346

Shape and cutting style on the report: Round brilliant

Certificate IGI LG700578346

Diamond specifications and retailer prices

From £85 GBP
As of November 1, 2026
Save £794 GBP (90%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £879 GBP at MOH London · As of November 5, 2026
View at MOH London

About this 0.71ct lab-grown round diamond

This 0.71ct lab-grown round sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG700578346 or 700578346. Listed at 18 retailers as of November 1, 2026, with prices from £85 to £879, a £794 spread on the same certified stone. MOH London lists it at £879. 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

0.71
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG700578346
Dimensions5.68 × 5.74 × 3.57 mm
L/W Ratio1.01
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
5.68 mm5.74 mm0.71 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG700578346
Side View
Table 57.0%Crown 35.3°Girdle: MediumPavilion 41°Culet: NoneDepth 62.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £879 GBP|Low: £81 GBP|High: £887 GBP|Avg: £270 GBP|-0.6%
MOH London
Retailer 2
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Retailer 17
November 6, 2026
Retailer 16£85 GBP
Retailer 9£94 GBP
Retailer 17£99 GBP
Retailer 7£112 GBP
Retailer 14£112 GBP
Retailer 3£126 GBP
Retailer 6£207 GBP
Retailer 2£212 GBP
Retailer 11£214 GBP
Retailer 13£267 GBP
Retailer 4£282 GBP
Retailer 15£340 GBP
Retailer 10£379 GBP
Retailer 8£382 GBP
Retailer 12£385 GBP
Retailer 5£684 GBP
MOH London£879 GBP

46 data points across 17 retailers

18 retailers£85 GBP to £879 GBP

A
Cheapest Retailer
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£85 GBP
A
Retailer 2
-
£94 GBP
View
Final sale: no returns
A
Retailer 3
-
£99 GBP
View
Retailer 4
-
£112 GBP
View
Price last confirmed 12 days ago
A
Retailer 5
-
£112 GBP
View
A
Retailer 6
-
£126 GBP
View
A
Retailer 7
-
£207 GBP
View
A
Retailer 8
-
£212 GBP
View
A
Retailer 9
-
£214 GBP
View
B+
Retailer 10
-
£267 GBP
View
Retailer 11
-
£267 GBP
View
Price last confirmed 9 days ago
B+
Retailer 12
-
£282 GBP
View
B+
Retailer 13
-
£340 GBP
View
B+
Retailer 14
-
£379 GBP
View
B+
Retailer 15
-
£382 GBP
View
B+
Retailer 16
-
£385 GBP
View
B
Retailer 17
-
£684 GBP
View
Most Expensive
B
MOH London
LG700578346 · Nov 5
£879 GBP
View
17 more retailers have this diamond
Prices start from £85 GBPSave up to £794 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
0.71ct Round
£85 GBP