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Round|Lab Grown|IGI

1.68ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG529267012

Shape and cutting style on the report: Round brilliant

Certificate IGI LG529267012

Diamond specifications and retailer prices

From £315 GBP
$419 USD
As of October 29, 2026
Save £984 GBP (76%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,148 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.68ct lab-grown round diamond

This 1.68ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG529267012 or 529267012. Listed at 11 retailers as of October 29, 2026, with a 313% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.68
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG529267012
Dimensions7.65 × 7.61 × 4.71 mm
L/W Ratio1.01
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
7.65 mm7.61 mm1.68 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG529267012
Side View
Table 58.0%Crown 34.9°Girdle: MediumPavilion 41.2°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £2,148 GBP|Low: £152 GBP|High: £2,148 GBP|Avg: £700 GBP
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 3£213 GBP
Retailer 7£315 GBP
Retailer 9£417 GBP
Retailer 10£485 GBP
Retailer 8£541 GBP
Retailer 2£594 GBP
Retailer 12£674 GBP
Retailer 6£879 GBP
Retailer 4£1,090 GBP
Retailer 11£1,182 GBP
Retailer 5£1,299 GBP
Do Amore Diamonds£2,148 GBP

33 data points across 12 retailers

11 retailers£315 GBP to £1,299 GBP

A
Cheapest Retailer
-
£315 GBP
$419 USD
B+
Retailer 2
-
£417 GBP
$555 USD
View
B+
Retailer 3
-
£485 GBP
$646 USD
View
B+
Retailer 4
-
£541 GBP
$720 USD
View
B
Retailer 5
-
£594 GBP
View
B+
Retailer 6
-
£674 GBP
$897 USD
View
B
Retailer 7
-
£879 GBP
$1,170 USD
View
B
Retailer 8
-
£1,090 GBP
$1,452 USD
View
B
Retailer 9
-
£1,182 GBP
$1,574 USD
View
B
Retailer 10
-
£1,299 GBP
View
Most Expensive
Do Amore Diamonds
27-8D728AC9C · Oct 29
£2,148 GBP
$2,860 USD
View
Price under review
10 more retailers have this diamond
Prices start from £315 GBPSave up to £984 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
1.68ct Round
£315 GBP