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Asscher|Lab Grown|IGI

3.09ct D IF Asscher Lab Grown Diamond

EX • D/IF • IGI LG704585128

Shape and cutting style on the report: Square emerald cut

Certificate IGI LG704585128

Diamond specifications and retailer prices

From £1,755 GBP
$2,352 USD
As of October 30, 2026
Save £10,320 GBP (85%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: £12,076 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 3.09ct lab-grown asscher diamond

This 3.09ct lab-grown asscher sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG704585128 or 704585128. Listed at 30 retailers as of October 30, 2026, with prices from £1,755 to £12,076, a £10,320 spread on the same certified stone. Do Amore Diamonds lists it at £12,076. 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

3.09
Carat
D
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG704585128
Dimensions8.14 × 8.07 × 5.23 mm
L/W Ratio1.01
Culet sizePointed
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
8.14 mm8.07 mm3.09 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG704585128
Side View
Table 64.0%Crown 35.9°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 64.8%

Caratlytics Score

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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: £12,076 GBP|Low: £1,755 GBP|High: £12,076 GBP|Avg: £4,825 GBP
Do Amore Diamonds
Retailer 2
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Retailer 23
November 1, 2026
Retailer 5£1,755 GBP
Retailer 7£1,912 GBP
Retailer 19£1,965 GBP
Retailer 10£2,108 GBP
Retailer 4£2,157 GBP
Retailer 12£2,799 GBP
Retailer 17£3,035 GBP
Retailer 3£3,120 GBP
Retailer 6£3,392 GBP
Retailer 22£3,602 GBP
Retailer 23£4,202 GBP
Retailer 15£4,265 GBP
Retailer 13£5,074 GBP
Retailer 21£5,218 GBP
Retailer 18£5,368 GBP
Retailer 9£5,436 GBP
Retailer 14£5,906 GBP
Retailer 8£5,941 GBP
Retailer 2£6,017 GBP
Retailer 16£7,838 GBP
Retailer 11£8,113 GBP
Retailer 20£8,434 GBP
Do Amore Diamonds£12,076 GBP

37 data points across 23 retailers

30 retailers£1,755 GBP to £12,076 GBP

A
Cheapest Retailer
-
£1,755 GBP
$2,352 USD
Retailer 2
-
£1,755 GBP
$2,352 USD
View
Price last confirmed 24 days ago
Retailer 3
-
£1,909 GBP
$2,558 USD
View
Price last confirmed 18 days ago
A
Retailer 4
-
£1,912 GBP
$2,562 USD
View
A
Retailer 5
-
£1,965 GBP
$2,633 USD
View
Final sale: no returns
Retailer 6
-
£1,966 GBP
$2,634 USD
View
Price last confirmed 37 days ago
Retailer 7
-
£2,036 GBP
$2,728 USD
View
Price last confirmed 29 days ago
Retailer 8
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£2,067 GBP
$2,770 USD
View
Price last confirmed 34 days ago
A
Retailer 9
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£2,108 GBP
$2,824 USD
View
A
Retailer 10
-
£2,157 GBP
$2,890 USD
View
A
Retailer 11
-
£2,799 GBP
HK$29,300 HKD
View
A
Retailer 12
-
£3,035 GBP
View
A
Retailer 13
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£3,089 GBP
$4,139 USD
View
A
Retailer 14
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£3,120 GBP
$4,180 USD
View
Retailer 15
-
£3,180 GBP
$4,261 USD
View
Price last confirmed 31 days ago
A
Retailer 16
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£3,392 GBP
$4,545 USD
View
A
Retailer 17
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£3,602 GBP
€4,597 EUR
View
Retailer 18
-
£4,202 GBP
$5,630 USD
View
Price last confirmed 13 days ago
B+
Retailer 19
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£4,265 GBP
View
B+
Retailer 20
-
£5,074 GBP
A$10,460 AUD
View
B+
Retailer 21
-
£5,218 GBP
ZAR 112,955 ZAR
View
B+
Retailer 22
-
£5,368 GBP
A$11,066 AUD
View
B+
Retailer 23
-
£5,436 GBP
$7,283 USD
View
B+
Retailer 24
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£5,906 GBP
$7,913 USD
View
B+
Retailer 25
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£5,941 GBP
$7,960 USD
View
B+
Retailer 26
-
£6,017 GBP
View
B
Retailer 27
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£7,838 GBP
$10,502 USD
View
B
Retailer 28
-
£8,113 GBP
SGD 14,690 SGD
View
B
Retailer 29
-
£8,434 GBP
$11,300 USD
View
Most Expensive
B
Do Amore Diamonds
27-6F1DC81DB · Oct 31
£12,076 GBP
$16,180 USD
View
29 more retailers have this diamond
Prices start from £1,755 GBPSave up to £10,320 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
3.09ct Asscher
£1,755 GBP