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 $598 USD
As of November 1, 2026
Save $1,864 USD (76%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,185 USD 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 November 1, 2026, with a 312% 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

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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: $5,185 USD|Low: $574 USD|High: $5,497 USD|Avg: $1,880 USD|-5.7%
Rare Carat
Retailer 2
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Retailer 19
November 2, 2026
Retailer 19$598 USD
Retailer 5$669 USD
Retailer 7$669 USD
Retailer 2$722 USD
Retailer 3$741 USD
Retailer 18$741 USD
Retailer 17$1,018 USD
Retailer 14$1,020 USD
Retailer 8$1,021 USD
Retailer 12$1,566 USD
Retailer 13$1,609 USD
Retailer 16$1,839 USD
Retailer 4$1,949 USD
Retailer 9$2,319 USD
Retailer 10$2,397 USD
Retailer 6$2,462 USD
Retailer 15$3,221 USD
Retailer 11$4,758 USD
Rare Carat$5,185 USD

41 data points across 19 retailers

18 retailers$598 USD to $2,462 USD

A
Cheapest Retailer
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$598 USD
A
Retailer 2
-
$669 USD
View
A
Retailer 3
-
$669 USD
View
Final sale: no returns
A
Retailer 4
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$722 USD
£568 GBP
View
Retailer 5
-
$741 USD
View
Price last confirmed 17 days ago
A
Retailer 6
-
$741 USD
View
A
Retailer 7
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$1,018 USD
View
A
Retailer 8
-
$1,020 USD
View
A
Retailer 9
-
$1,021 USD
View
B+
Retailer 10
-
$1,566 USD
A$2,409 AUD
View
B+
Retailer 11
-
$1,609 USD
ZAR 25,999 ZAR
View
B+
Retailer 12
-
$1,839 USD
View
B+
Retailer 13
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$1,949 USD
View
B
Retailer 14
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$2,319 USD
View
B
Retailer 15
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$2,397 USD
View
B
Retailer 16
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$2,462 USD
View
Retailer 17
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$3,221 USD
£2,536 GBP
View
Price last confirmed 8 days ago
Most Expensive
Rare Carat
GD17734_l_728578058 · Oct 21
$5,185 USD
View
Price last confirmed 12 days ago
17 more retailers have this diamond
Prices start from $598 USDSave up to $1,864 USD

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
$598 USD