Oval|Lab Grown|IGI

1.55ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG839682976

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG839682976

Diamond specifications and retailer prices

From £222 GBP
$298 USD
As of November 1, 2026
Save £901 GBP (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,123 GBP at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

About this 1.55ct lab-grown oval diamond

This 1.55ct lab-grown oval sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG839682976 or 839682976. Listed at 13 retailers as of November 1, 2026, with prices from £222 to £1,123, a £901 spread on the same certified stone. Reve Diamonds lists it at £1,123. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.55
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG839682976
Dimensions9.58 × 6.58 × 4.01 mm
L/W Ratio1.46
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.58 mm6.58 mm1.55 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG839682976
Side View
Table 60.0%Crown 33.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 60.9%

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: Nov 1
Current: £352 GBP|Low: £249 GBP|High: £1,123 GBP|Avg: £561 GBP|+0.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
November 2, 2026
Retailer 9£249 GBP
Retailer 5£275 GBP
Retailer 1£352 GBP
Retailer 8£387 GBP
Retailer 7£392 GBP
Retailer 2£451 GBP
Retailer 3£484 GBP
Retailer 6£846 GBP
Retailer 10£921 GBP
Retailer 4£1,103 GBP
Reve Diamonds£1,123 GBP

13 data points across 11 retailers

13 retailers£222 GBP to £1,123 GBP

A
Cheapest Retailer
-
£222 GBP
$298 USD
A
Retailer 2
-
£249 GBP
$333 USD
View
Final sale: no returns
Retailer 3
-
£275 GBP
$369 USD
View
Price last confirmed 8 days ago
A
Retailer 4
-
£275 GBP
$369 USD
View
A
Retailer 5
-
£352 GBP
View
A
Retailer 6
-
£387 GBP
$518 USD
View
A
Retailer 7
-
£392 GBP
$525 USD
View
A
Retailer 8
-
£451 GBP
$604 USD
View
A
Retailer 9
-
£484 GBP
View
B
Retailer 10
-
£846 GBP
$1,134 USD
View
B
Retailer 11
-
£921 GBP
$1,234 USD
View
B
Retailer 12
-
£1,103 GBP
View
Most Expensive
B
Reve Diamonds
D5DB6F194 · Nov 1
£1,123 GBP
$1,505 USD
View
12 more retailers have this diamond
Prices start from £222 GBPSave up to £901 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 Oval
£222 GBP