Round|Lab Grown|IGI

3.25ct H IF Round Lab Grown Diamond

ID • H/IF • IGI LG728578058

Shape and cutting style on the report: Round brilliant

Certificate IGI LG728578058

Diamond specifications and retailer prices

From €535 EUR
$598 USD
As of October 29, 2026
Save €2,348 EUR (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €4,641 EUR at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 3.25ct lab-grown round diamond

This 3.25ct lab-grown round sits in the three to five carat band, graded H colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG728578058 or 728578058. Listed at 18 retailers as of October 25, 2026, with a 439% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.25
Carat
H
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728578058
Dimensions9.45 × 9.38 × 5.84 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
9.45 mm9.38 mm3.25 ctH / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728578058
Side View
Table 58.0%Crown 35.8°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 62.0%

Caratlytics Score

How it works →
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: €4,641 EUR|Low: €514 EUR|High: €4,920 EUR|Avg: €1,692 EUR|-5.7%
Rare Carat
Retailer 2
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Retailer 6
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Retailer 8
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Retailer 10
Retailer 11
Retailer 12
Retailer 13
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Retailer 15
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Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 19€535 EUR
Retailer 5€599 EUR
Retailer 7€599 EUR
Retailer 12€648 EUR
Retailer 3€663 EUR
Retailer 18€663 EUR
Retailer 17€911 EUR
Retailer 14€913 EUR
Retailer 8€914 EUR
Retailer 2€1,402 EUR
Retailer 13€1,441 EUR
Retailer 16€1,646 EUR
Retailer 4€1,745 EUR
Retailer 9€2,076 EUR
Retailer 10€2,145 EUR
Retailer 6€2,204 EUR
Retailer 15€2,883 EUR
Retailer 11€4,259 EUR
Rare Carat€4,641 EUR

40 data points across 19 retailers

18 retailers€535 EUR to €2,883 EUR

A
Cheapest Retailer
-
€535 EUR
$598 USD
A
Retailer 2
-
€599 EUR
$669 USD
View
A
Retailer 3
-
€599 EUR
$669 USD
View
Final sale: no returns
A
Retailer 4
-
€648 EUR
£570 GBP
View
Retailer 5
-
€663 EUR
$741 USD
View
Price last confirmed 15 days ago
A
Retailer 6
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€663 EUR
$741 USD
View
A
Retailer 7
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€911 EUR
$1,018 USD
View
A
Retailer 8
-
€913 EUR
$1,020 USD
View
A
Retailer 9
-
€914 EUR
$1,021 USD
View
B+
Retailer 10
-
€1,402 EUR
A$2,409 AUD
View
B+
Retailer 11
-
€1,441 EUR
ZAR 25,999 ZAR
View
B+
Retailer 12
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€1,646 EUR
$1,839 USD
View
B+
Retailer 13
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€1,745 EUR
$1,949 USD
View
B
Retailer 14
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€2,076 EUR
$2,319 USD
View
B
Retailer 15
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€2,145 EUR
$2,397 USD
View
B
Retailer 16
-
€2,204 EUR
$2,462 USD
View
B
Retailer 17
-
€2,883 EUR
£2,536 GBP
View
Most Expensive
Rare Carat
GD17734_l_728578058 · Oct 21
€4,641 EUR
$5,185 USD
View
Price last confirmed 10 days ago
17 more retailers have this diamond
Prices start from €535 EURSave up to €2,348 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
3.25ct Round
€535 EUR