Round|Lab Grown|IGI

3.70ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG825675292

Shape and cutting style on the report: Round brilliant

Certificate IGI LG825675292

Diamond specifications and retailer prices

From £2,063 GBP
$2,764 USD
As of October 29, 2026
Save £6,278 GBP (75%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £8,341 GBP at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 3.7ct lab-grown round diamond

This 3.7ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG825675292 or 825675292. Listed at 19 retailers as of October 29, 2026, with prices from £2,063 to £8,341, a £6,278 spread on the same certified stone. Taylor and Hart lists it at £8,341. 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

3.70
Carat
E
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825675292
Dimensions9.83 × 9.87 × 6.14 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS 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
9.83 mm9.87 mm3.70 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825675292
Side View
Table 58.0%Crown 35.4°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.3%

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 29
Current: £3,220 GBP|Low: £2,063 GBP|High: £9,005 GBP|Avg: £4,077 GBP|-7.6%
Retailer 1
Retailer 2
Retailer 3
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Retailer 10
Retailer 11
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Retailer 18
Taylor and Hart
October 31, 2026
Retailer 3£2,063 GBP
Retailer 13£2,245 GBP
Retailer 17£2,310 GBP
Retailer 15£2,417 GBP
Retailer 6£2,437 GBP
Retailer 8£2,437 GBP
Retailer 9£2,538 GBP
Retailer 12£2,822 GBP
Retailer 14£3,007 GBP
Retailer 1£3,220 GBP
Retailer 11£3,290 GBP
Retailer 7£3,482 GBP
Retailer 5£3,809 GBP
Retailer 10£5,019 GBP
Retailer 2£5,658 GBP
Retailer 16£6,012 GBP
Retailer 4£6,209 GBP
Retailer 18£6,998 GBP
Taylor and Hart£8,341 GBP

29 data points across 19 retailers

19 retailers£2,063 GBP to £8,341 GBP

A
Cheapest Retailer
-
£2,063 GBP
$2,764 USD
A
Retailer 2
-
£2,245 GBP
$3,008 USD
View
A
Retailer 3
-
£2,310 GBP
$3,095 USD
View
Final sale: no returns
A
Retailer 4
-
£2,417 GBP
$3,238 USD
View
A
Retailer 5
-
£2,437 GBP
$3,265 USD
View
A
Retailer 6
-
£2,437 GBP
$3,265 USD
View
B+
Retailer 7
-
£2,822 GBP
$3,781 USD
View
Retailer 8
-
£3,000 GBP
HK$31,400 HKD
View
Price last confirmed 40 days ago
B+
Retailer 9
-
£3,007 GBP
$4,029 USD
View
B+
Retailer 10
-
£3,220 GBP
View
B+
Retailer 11
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£3,290 GBP
$4,408 USD
View
B+
Retailer 12
-
£3,482 GBP
$4,665 USD
View
B+
Retailer 13
-
£3,809 GBP
€4,861 EUR
View
Retailer 14
-
£5,019 GBP
$6,725 USD
View
Price last confirmed 23 days ago
B+
Retailer 15
-
£5,658 GBP
ZAR 122,480 ZAR
View
B+
Retailer 16
-
£6,012 GBP
$8,055 USD
View
B+
Retailer 17
-
£6,209 GBP
View
B
Retailer 18
-
£6,998 GBP
$9,376 USD
View
Most Expensive
B
Taylor and Hart
I9OHZKM · Oct 30
£8,341 GBP
$11,176 USD
View
18 more retailers have this diamond
Prices start from £2,063 GBPSave up to £6,278 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
3.70ct Round
£2,063 GBP