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Round|Lab Grown|IGI

1.67ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG591307524

Shape and cutting style on the report: Round brilliant

Certificate IGI LG591307524

Diamond specifications and retailer prices

From £218 GBP
$291 USD
As of October 28, 2026
Save £1,396 GBP (86%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,614 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG591307524 or 591307524. Listed at 16 retailers as of October 28, 2026, with prices from £218 to £1,614, a £1,396 spread on the same certified stone. Do Amore Diamonds lists it at £1,614. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591307524
Dimensions7.62 × 7.63 × 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
7.62 mm7.63 mm1.67 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591307524
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 61.0%

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 28
Current: £1,614 GBP|Low: £194 GBP|High: £1,667 GBP|Avg: £568 GBP|-3.2%
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
Retailer 13
Retailer 14
October 30, 2026
Retailer 5£194 GBP
Retailer 6£215 GBP
Retailer 3£218 GBP
Retailer 13£279 GBP
Retailer 12£296 GBP
Retailer 14£308 GBP
Retailer 11£403 GBP
Retailer 2£436 GBP
Retailer 7£453 GBP
Retailer 8£515 GBP
Retailer 10£673 GBP
Retailer 4£895 GBP
Retailer 9£924 GBP
Do Amore Diamonds£1,614 GBP

39 data points across 14 retailers

16 retailers£218 GBP to £1,614 GBP

Retailer 1
-
£173 GBP
$231 USD
Price last confirmed 31 days ago
Retailer 2
-
£201 GBP
$268 USD
View
Price last confirmed 37 days ago
Retailer 3
-
£213 GBP
$283 USD
View
Price last confirmed 31 days ago
A
Retailer 4
-
£218 GBP
$291 USD
View
B+
Retailer 5
-
£279 GBP
$372 USD
View
A
Retailer 6
-
£296 GBP
$394 USD
View
A
Retailer 7
-
£308 GBP
HK$3,200 HKD
View
A
Retailer 8
-
£403 GBP
$537 USD
View
A
Retailer 9
-
£436 GBP
View
B+
Retailer 10
-
£453 GBP
$603 USD
View
B+
Retailer 11
-
£515 GBP
€653 EUR
View
B+
Retailer 12
-
£673 GBP
$896 USD
View
Retailer 13
-
£763 GBP
$1,016 USD
View
Price last confirmed 29 days ago
B
Retailer 14
-
£895 GBP
SGD 1,611 SGD
View
B
Retailer 15
-
£924 GBP
View
Most Expensive
B
Do Amore Diamonds
27-ED6A3FC01 · Oct 29
£1,614 GBP
$2,150 USD
View
15 more retailers have this diamond
Prices start from £218 GBPSave up to £1,396 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
1.67ct Round
£218 GBP