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Asscher|Lab Grown|IGI

3.59ct E SI1 Asscher Lab Grown Diamond

ID • E/SI1 • IGI LG707520123

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG707520123

Diamond specifications and retailer prices

From £541 GBP
$725 USD
As of October 30, 2026
Save £1,225 GBP (69%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £1,766 GBP at NZ Jewellers · As of October 29, 2026
View at NZ Jewellers

About this 3.59ct lab-grown asscher diamond

This 3.59ct lab-grown asscher sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG707520123 or 707520123. Listed at 11 retailers as of October 29, 2026, with prices from £541 to £1,766, a £1,225 spread on the same certified stone. NZ Jewellers lists it at £1,766. 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

3.59
Carat
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.9°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG707520123
Dimensions8.51 × 8.50 × 5.55 mm
L/W Ratio1.00
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.51 mm8.50 mm3.59 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG707520123
Side View
Table 68.0%Crown 38.9°Girdle: MediumPavilion 40.4°Culet: NoneDepth 65.3%

Caratlytics Score

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

Price History

Last verified: Oct 30
Current: £1,766 GBP|Low: £541 GBP|High: £4,396 GBP|Avg: £1,364 GBP
NZ Jewellers
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 31, 2026
Retailer 4£541 GBP
Retailer 3£589 GBP
Retailer 9£628 GBP
Retailer 12£736 GBP
Retailer 10£761 GBP
Retailer 7£824 GBP
Retailer 11£878 GBP
Retailer 5£880 GBP
Retailer 8£1,007 GBP
Retailer 14£1,018 GBP
Retailer 2£1,546 GBP
NZ Jewellers£1,766 GBP
Retailer 13£2,564 GBP
Retailer 6£4,396 GBP

5 data points across 14 retailers

11 retailers£541 GBP to £1,766 GBP

A
Cheapest Retailer
-
£541 GBP
$725 USD
A
Retailer 2
-
£589 GBP
$789 USD
View
A
Retailer 3
-
£628 GBP
$841 USD
View
A
Retailer 4
-
£736 GBP
HK$7,700 HKD
View
A
Retailer 5
-
£761 GBP
$1,020 USD
View
A
Retailer 6
-
£824 GBP
View
B+
Retailer 7
-
£878 GBP
$1,177 USD
View
B+
Retailer 8
-
£1,007 GBP
View
B+
Retailer 9
-
£1,018 GBP
$1,364 USD
View
B
Retailer 10
-
£1,546 GBP
$2,072 USD
View
Most Expensive
B
NZ Jewellers
42cf8897-3093-4aa7-a2a3-316030ece936 · Oct 29
£1,766 GBP
$2,366 USD
View
10 more retailers have this diamond
Prices start from £541 GBPSave up to £1,225 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
3.59ct Asscher
£541 GBP