CaratHunter
Plans
Round|Lab Grown|IGI

1.67ct G SI2 Round Lab Grown Diamond

ID • G/SI2 • IGI LG515226753

Shape and cutting style on the report: Round brilliant

Certificate IGI LG515226753

Diamond specifications and retailer prices

From £459 GBP
$615 USD
As of October 30, 2026
Save £792 GBP (63%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £1,251 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.67ct lab-grown round diamond

This 1.67ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG515226753 or 515226753. Listed at 10 retailers as of October 29, 2026, with prices from £459 to £1,251, a £792 spread on the same certified stone. MOH London lists it at £1,251. 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

1.67
Carat
G
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG515226753
Dimensions7.66 × 7.64 × 4.65 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
7.66 mm7.64 mm1.67 ctG / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG515226753
Side View
Table 59.0%Crown 35°Girdle: THN-MEDPavilion 40.9°Culet: NoneDepth 60.8%

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 30
Current: £1,251 GBP|Low: £220 GBP|High: £1,251 GBP|Avg: £648 GBP|+28.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 6£220 GBP
Retailer 4£459 GBP
Retailer 2£555 GBP
Retailer 5£641 GBP
Retailer 3£864 GBP
Retailer 7£1,007 GBP
MOH London£1,251 GBP

33 data points across 7 retailers

10 retailers£459 GBP to £1,251 GBP

Retailer 1
-
£178 GBP
$238 USD
Price last confirmed 39 days ago
Retailer 2
-
£206 GBP
$276 USD
View
Price last confirmed 39 days ago
Retailer 3
-
£217 GBP
$291 USD
View
Price last confirmed 39 days ago
B+
Retailer 4
-
£459 GBP
$615 USD
View
B+
Retailer 5
-
£555 GBP
View
B+
Retailer 6
-
£641 GBP
$859 USD
View
Retailer 7
-
£781 GBP
$1,046 USD
View
Price last confirmed 40 days ago
B
Retailer 8
-
£864 GBP
$1,158 USD
View
B
Retailer 9
-
£1,007 GBP
$1,349 USD
View
Most Expensive
C
MOH London
LG515226753 · Oct 29
£1,251 GBP
View
9 more retailers have this diamond
Prices start from £459 GBPSave up to £792 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+
1.67ct Round
£459 GBP