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Round|Lab Grown|IGI

1.55ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG835629893

Shape and cutting style on the report: Round brilliant

Certificate IGI LG835629893

Diamond specifications and retailer prices

From £206 GBP
$276 USD
As of November 1, 2026
Save £815 GBP (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,431 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

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 G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG835629893 or 835629893. Listed at 15 retailers as of November 1, 2026, with a 396% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG835629893
Dimensions7.44 × 7.46 × 4.54 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.44 mm7.46 mm1.55 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG835629893
Side View
Table 59.0%Crown 33°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 60.9%

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: £1,431 GBP|Low: £199 GBP|High: £1,438 GBP|Avg: £631 GBP|-0.5%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 6£206 GBP
Retailer 11£255 GBP
Retailer 10£269 GBP
Retailer 4£341 GBP
Retailer 12£373 GBP
Retailer 8£439 GBP
Retailer 2£447 GBP
Retailer 7£599 GBP
Retailer 14£662 GBP
Retailer 15£782 GBP
Retailer 13£818 GBP
Retailer 5£856 GBP
Retailer 3£979 GBP
Retailer 9£1,020 GBP
Rare Carat£1,431 GBP

37 data points across 15 retailers

15 retailers£206 GBP to £1,020 GBP

A
Cheapest Retailer
-
£206 GBP
$276 USD
A
Retailer 2
-
£255 GBP
$342 USD
View
A
Retailer 3
-
£269 GBP
View
B+
Retailer 4
-
£341 GBP
$458 USD
View
A
Retailer 5
-
£373 GBP
$500 USD
View
A
Retailer 6
-
£439 GBP
ZAR 9,517 ZAR
View
A
Retailer 7
-
£447 GBP
View
A
Retailer 8
-
£599 GBP
A$1,236 AUD
View
B+
Retailer 9
-
£662 GBP
$889 USD
View
B+
Retailer 10
-
£782 GBP
$1,050 USD
View
B+
Retailer 11
-
£818 GBP
$1,098 USD
View
B+
Retailer 12
-
£856 GBP
$1,149 USD
View
B+
Retailer 13
-
£979 GBP
$1,314 USD
View
B+
Retailer 14
-
£1,020 GBP
View
Most Expensive
Rare Carat
186023 · Oct 21
£1,431 GBP
$1,920 USD
View
Price last confirmed 12 days ago
14 more retailers have this diamond
Prices start from £206 GBPSave up to £815 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
£206 GBP