CaratHunter
Plans
Round|Lab Grown|IGI

2.43ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG593371740

Shape and cutting style on the report: Round brilliant

Certificate IGI LG593371740

Diamond specifications and retailer prices

From £589 GBP
$784 USD
As of October 23, 2026
Save £417 GBP (41%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,576 GBP at Do Amore Diamonds · As of October 23, 2026
View at Do Amore Diamonds

About this 2.43ct lab-grown round diamond

This 2.43ct lab-grown round sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG593371740 or 593371740. Listed at 11 retailers as of October 23, 2026, with a 71% 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

2.43
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG593371740
Dimensions8.68 × 8.65 × 5.30 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
Pre-existing laser inscription on girdle. Partial inscription on girdle. As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process.
Top View
8.68 mm8.65 mm2.43 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG593371740
Side View
Table 56.0%Crown 34.1°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 61.1%

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 23
Current: £2,576 GBP|Low: £294 GBP|High: £2,576 GBP|Avg: £1,063 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 23, 2026
Retailer 8£306 GBP
Retailer 9£342 GBP
Retailer 12£589 GBP
Retailer 11£600 GBP
Retailer 2£839 GBP
Retailer 3£1,005 GBP
Retailer 7£1,006 GBP
Retailer 10£1,064 GBP
Retailer 5£1,346 GBP
Retailer 4£1,501 GBP
Retailer 6£1,547 GBP
Do Amore Diamonds£2,576 GBP

22 data points across 12 retailers

11 retailers£589 GBP to £1,005 GBP

Retailer 1
-
£306 GBP
$408 USD
Price last confirmed 7 days ago
Retailer 2
-
£342 GBP
$456 USD
View
Price last confirmed 10 days ago
A
Retailer 3
-
£589 GBP
$784 USD
View
Retailer 4
-
£600 GBP
$799 USD
View
Price last confirmed 7 days ago
Retailer 5
-
£839 GBP
View
Price last confirmed 8 days ago
A
Retailer 6
-
£1,005 GBP
$1,339 USD
View
Retailer 7
-
£1,006 GBP
$1,340 USD
View
Price last confirmed 7 days ago
Retailer 8
-
£1,064 GBP
$1,417 USD
View
Price last confirmed 7 days ago
Retailer 9
-
£1,346 GBP
$1,793 USD
View
Price last confirmed 8 days ago
Retailer 10
-
£1,547 GBP
View
Price last confirmed 9 days ago
Most Expensive
Do Amore Diamonds
7-1588264 · Oct 23
£2,576 GBP
$3,430 USD
View
Price last confirmed 7 days ago
10 more retailers have this diamond
Prices start from £589 GBPSave up to £417 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
2.43ct Round
£589 GBP