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Asscher|Lab Grown|IGI

1.00ct E SI1 Asscher Lab Grown Diamond

ID • E/SI1 • IGI LG520207914

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG520207914

Diamond specifications and retailer prices

From $640 USD
As of October 30, 2026
Save $33 USD (5%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $2,088 USD at Rare Carat · As of August 17, 2026
View at Rare Carat

About this 1ct lab-grown asscher diamond

This 1ct lab-grown asscher sits in the classic one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG520207914 or 520207914. Listed at 3 retailers as of October 28, 2026, with a relatively tight 5% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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

1.00
Carat
E
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.5°
Pavilion angle42.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG520207914
Dimensions5.48 × 5.44 × 3.64 mm
L/W Ratio1.01
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
5.48 mm5.44 mm1.00 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG520207914
Side View
Table 65.5%Crown 28.5°Girdle: MED-STKPavilion 42.3°Culet: NoneDepth 66.9%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: $2,088 USD|Low: $179 USD|High: $2,312 USD|Avg: $570 USD|+367.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
August 17, 2026
Retailer 7$179 USD
Retailer 9$277 USD
Retailer 6$294 USD
Retailer 8$327 USD
Retailer 2$502 USD
Retailer 10$640 USD
Retailer 4$776 USD
Retailer 5$881 USD
Retailer 3$1,310 USD
Rare Carat$2,088 USD

39 data points across 10 retailers

3 retailers$640 USD to $673 USD

B
Cheapest Retailer
-
$640 USD
B
Retailer 2
-
$673 USD
£530 GBP
View
Most Expensive
Rare Carat
3640 · Aug 17
$2,088 USD
View
Price under review
2 more retailers have this diamond
Prices start from $640 USDSave up to $33 USD

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
1.00ct Asscher
$640 USD