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Round|Lab Grown|IGI

0.65ct I SI1 Round Lab Grown Diamond

VG • I/SI1 • IGI LG717551482

Certificate IGI LG717551482

Diamond specifications and retailer prices

From £378 GBP
$506 USD
As of October 31, 2026
Save £297 GBP (44%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £674 GBP at Cape Diamonds · As of October 30, 2026
View at Cape Diamonds

About this 0.65ct lab-grown round diamond

This 0.65ct lab-grown round sits in the half to three-quarter carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG717551482 or 717551482. Listed at 5 retailers as of October 30, 2026, with prices from £378 to £674, a £297 spread on the same certified stone. Cape Diamonds lists it at £674. 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

0.65
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishGood
SymmetryVery Good
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG717551482
Dimensions5.35 × 5.32 × 3.50 mm
L/W Ratio1.01
Top View
5.35 mm5.32 mm0.65 ctI / SI1
OriginLab Grown
CutVery Good
PolishGood
SymmetryVery Good
FluorescenceNone
CertificateIGI LG717551482
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 65.6%

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: £674 GBP|Low: £378 GBP|High: £678 GBP|Avg: £547 GBP|+5.5%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 4£378 GBP
Retailer 7£403 GBP
Retailer 5£470 GBP
Retailer 8£502 GBP
Retailer 2£569 GBP
Retailer 3£571 GBP
Retailer 6£666 GBP
Cape Diamonds£674 GBP

36 data points across 8 retailers

5 retailers£378 GBP to £674 GBP

B+
Cheapest Retailer
-
£378 GBP
$506 USD
Final sale: no returns
B+
Retailer 2
-
£470 GBP
$630 USD
View
B
Retailer 3
-
£569 GBP
View
B
Retailer 4
-
£571 GBP
View
Most Expensive
B
Cape Diamonds
cert_717551482 · Oct 30
£674 GBP
ZAR 14,595 ZAR
View
4 more retailers have this diamond
Prices start from £378 GBPSave up to £297 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+
0.65ct Round
£378 GBP