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Round|Lab Grown|IGI

4.51ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG626473310

Shape and cutting style on the report: Round brilliant

Certificate IGI LG626473310

Diamond specifications and retailer prices

From €2,310 EUR
$2,581 USD
As of October 29, 2026
Save €7,036 EUR (75%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €9,346 EUR at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.51ct lab-grown round diamond

This 4.51ct lab-grown round sits in the three to five carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG626473310 or 626473310. Listed at 21 retailers as of October 29, 2026, with prices from €2,310 to €9,346, a €7,036 spread on the same certified stone. Taylor and Hart lists it at €9,346. 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

4.51
Carat
G
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG626473310
Dimensions10.59 × 10.66 × 6.50 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
10.59 mm10.66 mm4.51 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG626473310
Side View
Table 57.0%Crown 34.1°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.2%

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: Oct 29
Current: €4,408 EUR|Low: €2,217 EUR|High: €12,370 EUR|Avg: €4,504 EUR|+6.2%
Retailer 1
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
Retailer 16
November 1, 2026
Retailer 2€2,310 EUR
Retailer 7€2,513 EUR
Retailer 5€2,587 EUR
Retailer 4€2,679 EUR
Retailer 15€2,681 EUR
Retailer 6€2,824 EUR
Retailer 10€3,574 EUR
Retailer 8€3,683 EUR
Retailer 16€3,931 EUR
Retailer 11€4,249 EUR
Retailer 1€4,408 EUR
Retailer 13€5,703 EUR
Retailer 9€5,740 EUR
Retailer 3€6,807 EUR
Retailer 12€7,179 EUR
Retailer 14€7,213 EUR

42 data points across 16 retailers

21 retailers€2,310 EUR to €9,346 EUR

A
Cheapest Retailer
-
€2,310 EUR
$2,581 USD
A
Retailer 2
-
€2,513 EUR
$2,808 USD
View
A
Retailer 3
-
€2,587 EUR
$2,890 USD
View
Final sale: no returns
A
Retailer 4
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€2,679 EUR
$2,993 USD
View
Retailer 5
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€2,679 EUR
$2,993 USD
View
Price last confirmed 19 days ago
A
Retailer 6
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€2,681 EUR
$2,995 USD
View
A
Retailer 7
-
€2,824 EUR
$3,155 USD
View
A
Retailer 8
-
€3,574 EUR
£3,144 GBP
View
A
Retailer 9
-
€3,683 EUR
$4,115 USD
View
B+
Retailer 10
-
€3,931 EUR
$4,392 USD
View
B+
Retailer 11
-
€4,249 EUR
View
A
Retailer 12
-
€4,408 EUR
$4,925 USD
View
B+
Retailer 13
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€4,761 EUR
$5,319 USD
View
B+
Retailer 14
-
€5,703 EUR
ZAR 102,939 ZAR
View
B+
Retailer 15
-
€5,740 EUR
A$9,866 AUD
View
B
Retailer 16
-
€6,807 EUR
$7,605 USD
View
B
Retailer 17
-
€7,154 EUR
$7,992 USD
View
B+
Retailer 18
-
€7,179 EUR
$8,020 USD
View
B+
Retailer 19
-
€7,213 EUR
£6,345 GBP
View
B
Retailer 20
-
€7,681 EUR
$8,582 USD
View
Most Expensive
B
Taylor and Hart
WQO5GBO · Oct 31
€9,346 EUR
$10,441 USD
View
20 more retailers have this diamond
Prices start from €2,310 EURSave up to €7,036 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.

A
4.51ct Round
€2,310 EUR