CaratHunter
Plans
Round|Lab Grown|IGI

0.71ct K VVS1 Round Lab Grown Diamond

VG • K/VVS1 • IGI LGF6G63378

Certificate IGI LGF6G63378

Diamond specifications and retailer prices

From £647 GBP
As of November 6, 2026
Save £492 GBP (43%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,139 GBP at 18carati · As of November 4, 2026
View at 18carati

About this 0.71ct lab-grown round diamond

This 0.71ct lab-grown round sits in the half to three-quarter carat band, graded K colour (faint-tinted) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LGF6G63378 or F6G63378. Listed at 2 retailers as of November 4, 2026, with prices from £647 to £1,139, a £492 spread on the same certified stone. 18carati lists it at £1,139. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.71
Carat
K
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LGF6G63378
Dimensions5.59 × 5.67 × 3.61 mm
L/W Ratio1.01
Top View
5.59 mm5.67 mm0.71 ctK / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LGF6G63378
Side View
Table 57.5%CrownGirdlePavilionCulet: NoneDepth 64.1%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £1,139 GBP|Low: £620 GBP|High: £1,139 GBP|Avg: £886 GBP|+3.5%
18carati
Retailer 2
November 6, 2026
Retailer 2£647 GBP
18carati£1,139 GBP

36 data points across 2 retailers

2 retailers£647 GBP to £1,139 GBP

B
Cheapest Retailer
-
£647 GBP
Most Expensive
C
18carati
NK-3378KVVS1-0071 · Nov 4
£1,139 GBP
€1,460 EUR
View
1 more retailer has this diamond
Prices start from £647 GBPSave up to £492 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.

B
0.71ct Round
£647 GBP