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Round|Lab Grown|IGI

1.61ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG350871068

Shape and cutting style on the report: Round brilliant

Certificate IGI LG350871068

Diamond specifications and retailer prices

From £259 GBP
$347 USD
As of October 29, 2026
Save £2,040 GBP (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,299 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.61ct lab-grown round diamond

This 1.61ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG350871068 or 350871068. Listed at 19 retailers as of October 29, 2026, with prices from £259 to £2,299, a £2,040 spread on the same certified stone. Do Amore Diamonds lists it at £2,299. 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

1.61
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG350871068
Dimensions7.51 × 7.56 × 4.64 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa
Top View
7.51 mm7.56 mm1.61 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG350871068
Side View
Table 58.0%Crown 34.5°Girdle: MediumPavilion 41°Culet: NoneDepth 61.5%

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: £2,299 GBP|Low: £259 GBP|High: £2,299 GBP|Avg: £765 GBP
Do Amore Diamonds
Retailer 2
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Retailer 19
October 30, 2026
Retailer 18£259 GBP
Retailer 15£301 GBP
Retailer 13£317 GBP
Retailer 5£321 GBP
Retailer 14£322 GBP
Retailer 19£391 GBP
Retailer 6£433 GBP
Retailer 7£552 GBP
Retailer 10£555 GBP
Retailer 16£571 GBP
Retailer 12£574 GBP
Retailer 11£626 GBP
Retailer 2£657 GBP
Retailer 17£942 GBP
Retailer 9£971 GBP
Retailer 4£1,140 GBP
Retailer 3£1,256 GBP
Retailer 8£1,391 GBP
Do Amore Diamonds£2,299 GBP

13 data points across 19 retailers

19 retailers£259 GBP to £2,299 GBP

A
Cheapest Retailer
-
£259 GBP
$347 USD
A
Retailer 2
-
£301 GBP
$403 USD
View
B+
Retailer 3
-
£317 GBP
$425 USD
View
A
Retailer 4
-
£321 GBP
$430 USD
View
A
Retailer 5
-
£322 GBP
$431 USD
View
A
Retailer 6
-
£391 GBP
$524 USD
View
A
Retailer 7
-
£433 GBP
$580 USD
View
Retailer 8
-
£552 GBP
$740 USD
View
Price last confirmed 10 days ago
A
Retailer 9
-
£555 GBP
$744 USD
View
A
Retailer 10
-
£571 GBP
$765 USD
View
A
Retailer 11
-
£574 GBP
View
A
Retailer 12
-
£626 GBP
$839 USD
View
A
Retailer 13
-
£657 GBP
$880 USD
View
A
Retailer 14
-
£942 GBP
$1,262 USD
View
A
Retailer 15
-
£971 GBP
$1,301 USD
View
B+
Retailer 16
-
£1,140 GBP
$1,528 USD
View
B+
Retailer 17
-
£1,256 GBP
$1,682 USD
View
Retailer 18
-
£1,391 GBP
View
Price last confirmed 13 days ago
Most Expensive
B
Do Amore Diamonds
27-482142927 · Oct 31
£2,299 GBP
$3,080 USD
View
18 more retailers have this diamond
Prices start from £259 GBPSave up to £2,040 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
1.61ct Round
£259 GBP