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Oval|Lab Grown|IGI

5.51ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG597381370

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG597381370

Diamond specifications and retailer prices

From €1,796 EUR
£1,580 GBP
As of November 1, 2026
Save €2,930 EUR (62%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €4,726 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 5.51ct lab-grown oval diamond

This 5.51ct lab-grown oval sits in the over five carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG597381370 or 597381370. Listed at 9 retailers as of October 31, 2026, with prices from €1,796 to €4,726, a €2,930 spread on the same certified stone. Taylor and Hart lists it at €4,726. 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

5.51
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.6°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG597381370
Dimensions14.69 × 9.66 × 5.96 mm
L/W Ratio1.52
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
14.69 mm9.66 mm5.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG597381370
Side View
Table 58.0%Crown 37.6°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €1,796 EUR|Low: €1,325 EUR|High: €6,606 EUR|Avg: €2,872 EUR|-1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Taylor and Hart
November 1, 2026
Retailer 2€1,325 EUR
Retailer 1€1,796 EUR
Retailer 10€1,897 EUR
Retailer 4€1,965 EUR
Retailer 6€1,965 EUR
Retailer 8€2,154 EUR
Retailer 9€2,371 EUR
Retailer 3€3,366 EUR
Retailer 7€3,946 EUR
Retailer 5€3,983 EUR
Taylor and Hart€4,726 EUR

35 data points across 11 retailers

9 retailers€1,796 EUR to €4,726 EUR

B+
Cheapest Retailer
-
€1,796 EUR
£1,580 GBP
B+
Retailer 2
-
€1,965 EUR
$2,195 USD
View
B
Retailer 3
-
€1,965 EUR
$2,195 USD
View
B
Retailer 4
-
€2,154 EUR
$2,406 USD
View
B
Retailer 5
-
€2,371 EUR
$2,649 USD
View
B
Retailer 6
-
€3,366 EUR
$3,760 USD
View
B
Retailer 7
-
€3,946 EUR
SGD 5,957 SGD
View
B
Retailer 8
-
€3,983 EUR
£3,504 GBP
View
Most Expensive
B
Taylor and Hart
C1PBHD0 · Oct 31
€4,726 EUR
$5,280 USD
View
8 more retailers have this diamond
Prices start from €1,796 EURSave up to €2,930 EUR

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.

B+
5.51ct Oval
€1,796 EUR