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Round|Lab Grown|IGI

1.55ct F VVS1 Round Lab Grown Diamond

EX • F/VVS1 • IGI LG770636607

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770636607

Diamond specifications and retailer prices

From £199 GBP
$266 USD
As of November 1, 2026
Save £1,152 GBP (85%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: £1,351 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG770636607 or 770636607. Listed at 25 retailers as of October 31, 2026, with prices from £199 to £1,351, a £1,152 spread on the same certified stone. Brilliant Earth lists it at £1,351. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
F
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770636607
Dimensions7.37 × 7.44 × 4.63 mm
L/W Ratio1.01
Girdle conditionFaceted
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
7.37 mm7.44 mm1.55 ctF / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770636607
Side View
Table 55.0%Crown 35.9°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.6%

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: Nov 1
Current: £1,351 GBP|Low: £199 GBP|High: £1,396 GBP|Avg: £554 GBP|-3.2%
Brilliant Earth
Retailer 2
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November 2, 2026
Retailer 10£199 GBP
Retailer 8£222 GBP
Retailer 5£230 GBP
Retailer 7£246 GBP
Retailer 22£246 GBP
Retailer 9£330 GBP
Retailer 18£332 GBP
Retailer 16£376 GBP
Retailer 17£400 GBP
Retailer 13£424 GBP
Retailer 6£443 GBP
Retailer 2£466 GBP
Retailer 11£467 GBP
Retailer 20£470 GBP
Retailer 21£571 GBP
Retailer 19£587 GBP
Retailer 4£790 GBP
Retailer 14£790 GBP
Retailer 12£828 GBP
Retailer 15£945 GBP
Retailer 3£986 GBP
Brilliant Earth£1,351 GBP

33 data points across 22 retailers

25 retailers£199 GBP to £1,351 GBP

A
Cheapest Retailer
-
£199 GBP
$266 USD
A
Retailer 2
-
£222 GBP
$297 USD
View
Final sale: no returns
A
Retailer 3
-
£230 GBP
$308 USD
View
Retailer 4
-
£246 GBP
$329 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£246 GBP
$329 USD
View
A
Retailer 6
-
£277 GBP
HK$2,900 HKD
View
B+
Retailer 7
-
£330 GBP
$442 USD
View
A
Retailer 8
-
£332 GBP
$445 USD
View
A
Retailer 9
-
£376 GBP
View
A
Retailer 10
-
£400 GBP
€511 EUR
View
A
Retailer 11
-
£424 GBP
ZAR 9,171 ZAR
View
B+
Retailer 12
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£443 GBP
$593 USD
View
B+
Retailer 13
-
£466 GBP
View
B+
Retailer 14
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£467 GBP
$626 USD
View
B+
Retailer 15
-
£470 GBP
A$968 AUD
View
B+
Retailer 16
-
£571 GBP
A$1,178 AUD
View
B+
Retailer 17
-
£587 GBP
$787 USD
View
B+
Retailer 18
-
£625 GBP
$837 USD
View
B
Retailer 19
-
£790 GBP
$1,058 USD
View
B
Retailer 20
-
£790 GBP
SGD 1,430 SGD
View
B
Retailer 21
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£828 GBP
$1,109 USD
View
B
Retailer 22
-
£901 GBP
$1,207 USD
View
B
Retailer 23
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£945 GBP
$1,266 USD
View
Retailer 24
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£986 GBP
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
18567110A · Oct 31
£1,351 GBP
$1,810 USD
View
24 more retailers have this diamond
Prices start from £199 GBPSave up to £1,152 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
1.55ct Round
£199 GBP