CaratHunter
Plans
Cushion|Lab Grown|IGI

0.71ct D SI1 Cushion Lab Grown Diamond

VG • D/SI1 • IGI LG760528613

Certificate IGI LG760528613

Diamond specifications and retailer prices

From £318 GBP
$426 USD
As of October 31, 2026
Save £100 GBP (24%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £418 GBP at Zales · As of October 30, 2026
View at Zales

About this 0.71ct lab-grown cushion diamond

This 0.71ct lab-grown cushion sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG760528613 or 760528613. Listed at 4 retailers as of October 30, 2026, with prices from £318 to £418, a £100 spread on the same certified stone. Zales lists it at £418. 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
D
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG760528613
Dimensions6.36 × 4.79 × 3.15 mm
L/W Ratio1.33
Top View
6.36 mm4.79 mm0.71 ctD / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG760528613
Side View
Table 64.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 65.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £318 GBP|Low: £318 GBP|High: £552 GBP|Avg: £440 GBP
Retailer 1
Retailer 2
Retailer 3
Zales
September 26, 2026
Retailer 1£318 GBP
Retailer 3£351 GBP
Retailer 2£418 GBP
Zales£418 GBP

9 data points across 4 retailers

4 retailers£318 GBP to £418 GBP

B+
Cheapest Retailer
-
£318 GBP
$426 USD
B
Retailer 2
-
£351 GBP
$470 USD
View
B
Retailer 3
-
£418 GBP
$560 USD
View
Most Expensive
B
Zales
527043759 · Oct 30
£418 GBP
$560 USD
View
3 more retailers have this diamond
Prices start from £318 GBPSave up to £100 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 Cushion
£318 GBP