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Asscher|Lab Grown|IGI

3.17ct E IF Asscher Lab Grown Diamond

ID • E/IF • IGI LG843685645

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG843685645

Diamond specifications and retailer prices

From £1,027 GBP
$1,368 USD
As of October 30, 2026
Save £3,161 GBP (75%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £4,340 GBP at Rare Carat · As of October 14, 2026
View at Rare Carat

About this 3.17ct lab-grown asscher diamond

This 3.17ct lab-grown asscher sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG843685645 or 843685645. Listed at 18 retailers as of October 30, 2026, with a 308% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.17
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843685645
Dimensions8.09 × 7.91 × 5.20 mm
L/W Ratio1.02
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
8.09 mm7.91 mm3.17 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843685645
Side View
Table 65.0%Crown 39.6°Girdle: Slightly ThickPavilion 39.9°Culet: NoneDepth 65.7%

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 30
Current: £4,340 GBP|Low: £1,027 GBP|High: £5,203 GBP|Avg: £2,756 GBP
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
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Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
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Retailer 14
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Retailer 18
October 30, 2026
Retailer 11£1,027 GBP
Retailer 2£1,150 GBP
Retailer 4£1,198 GBP
Retailer 13£1,315 GBP
Retailer 14£1,677 GBP
Retailer 8£1,716 GBP
Retailer 3£1,888 GBP
Retailer 7£2,155 GBP
Retailer 9£2,177 GBP
Retailer 16£2,477 GBP
Retailer 18£2,670 GBP
Retailer 17£2,872 GBP
Retailer 6£3,299 GBP
Retailer 10£3,355 GBP
Retailer 12£3,694 GBP
Retailer 5£3,714 GBP
Retailer 15£4,188 GBP
Rare Carat£4,340 GBP

16 data points across 18 retailers

18 retailers£1,027 GBP to £4,188 GBP

A
Cheapest Retailer
-
£1,027 GBP
$1,368 USD
A
Retailer 2
-
£1,150 GBP
$1,532 USD
View
Final sale: no returns
A
Retailer 3
-
£1,198 GBP
$1,595 USD
View
A
Retailer 4
-
£1,315 GBP
View
A
Retailer 5
-
£1,677 GBP
View
A
Retailer 6
-
£1,716 GBP
$2,285 USD
View
A
Retailer 7
-
£1,888 GBP
€2,395 EUR
View
A
Retailer 8
-
£2,155 GBP
$2,870 USD
View
A
Retailer 9
-
£2,177 GBP
$2,899 USD
View
A
Retailer 10
-
£2,477 GBP
$3,299 USD
View
A
Retailer 11
-
£2,670 GBP
ZAR 57,431 ZAR
View
A
Retailer 12
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£2,872 GBP
View
A
Retailer 13
-
£3,299 GBP
$4,393 USD
View
Retailer 14
-
£3,355 GBP
A$6,873 AUD
View
Price last confirmed 7 days ago
A
Retailer 15
-
£3,694 GBP
$4,920 USD
View
A
Retailer 16
-
£3,714 GBP
View
B+
Retailer 17
-
£4,188 GBP
$5,577 USD
View
Most Expensive
Rare Carat
NJ35 66 · Oct 14
£4,340 GBP
$5,780 USD
View
Price last confirmed 15 days ago
17 more retailers have this diamond
Prices start from £1,027 GBPSave up to £3,161 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
3.17ct Asscher
£1,027 GBP