CaratHunter
Plans
Round|Lab Grown|IGI

3.68ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG635497102

Shape and cutting style on the report: Round brilliant

Certificate IGI LG635497102

Diamond specifications and retailer prices

From £997 GBP
CA$1,855 CAD
As of October 30, 2026
Save £321 GBP (24%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,318 GBP at The Diamond Guys · As of October 30, 2026
View at The Diamond Guys

About this 3.68ct lab-grown round diamond

This 3.68ct lab-grown round sits in the three to five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG635497102 or 635497102. Listed at 2 retailers as of October 30, 2026, with prices from £997 to £1,318, a £321 spread on the same certified stone. The Diamond Guys lists it at £1,318. 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

3.68
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG635497102
Dimensions9.92 × 9.89 × 6.06 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.92 mm9.89 mm3.68 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG635497102
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.2%

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 30
Current: £1,595 GBP|Low: £199 GBP|High: £2,403 GBP|Avg: £948 GBP|-4.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
The Diamond Guys
August 3, 2026
Retailer 3£539 GBP
Retailer 5£583 GBP
Retailer 9£656 GBP
Retailer 11£667 GBP
Retailer 6£767 GBP
Retailer 8£806 GBP
Retailer 4£823 GBP
Retailer 7£997 GBP
Retailer 2£1,272 GBP
The Diamond Guys£1,318 GBP
Retailer 1£1,595 GBP
Retailer 10£2,060 GBP

60 data points across 12 retailers

2 retailers£997 GBP to £1,318 GBP

B+
Cheapest Retailer
-
£997 GBP
CA$1,855 CAD
Most Expensive
B
The Diamond Guys
1954434373 · Oct 30
£1,318 GBP
$1,766 USD
View
1 more retailer has this diamond
Prices start from £997 GBPSave up to £321 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+
3.68ct Round
£997 GBP