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Round|Lab Grown|IGI

4.56ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG677521454

Shape and cutting style on the report: Round brilliant

Certificate IGI LG677521454

Diamond specifications and retailer prices

From $3,108 USD
As of October 31, 2026
Save $15,332 USD (83%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $18,440 USD at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 4.56ct lab-grown round diamond

This 4.56ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG677521454 or 677521454. Listed at 29 retailers as of October 31, 2026, with prices from $3,108 to $18,440, a $15,332 spread on the same certified stone. Do Amore Diamonds lists it at $18,440. 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

4.56
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG677521454
Dimensions10.56 × 10.61 × 6.58 mm
L/W Ratio1.00
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
10.56 mm10.61 mm4.56 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG677521454
Side View
Table 56.0%Crown 35.2°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 62.2%

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 31
Current: $5,514 USD|Low: $3,000 USD|High: $12,720 USD|Avg: $6,644 USD|+2.7%
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 2, 2026
Retailer 8$3,065 USD
Retailer 7$3,184 USD
Retailer 13$3,488 USD
Retailer 2$4,515 USD
Retailer 16$4,561 USD
Retailer 9$4,618 USD
Retailer 3$5,180 USD
Retailer 1$5,514 USD
Retailer 15$6,380 USD
Retailer 14$7,303 USD
Retailer 11$7,350 USD
Retailer 5$7,808 USD
Retailer 10$8,697 USD
Retailer 12$10,954 USD
Retailer 6$12,377 USD
Retailer 4$12,720 USD

44 data points across 16 retailers

29 retailers$3,108 USD to $18,440 USD

Retailer 1
-
$2,680 USD
Price last confirmed 34 days ago
Retailer 2
-
$2,915 USD
View
Price last confirmed 39 days ago
Retailer 3
-
$2,915 USD
View
Price last confirmed 26 days ago
Retailer 4
-
$2,915 USD
View
Price last confirmed 19 days ago
Retailer 5
-
$3,065 USD
View
Price last confirmed 33 days ago
A
Retailer 6
-
$3,108 USD
View
Retailer 7
-
$3,108 USD
View
Price last confirmed 30 days ago
A
Retailer 8
-
$3,184 USD
View
A
Retailer 9
-
$3,488 USD
View
Final sale: no returns
A
Retailer 10
-
$4,275 USD
HK$33,400 HKD
View
Retailer 11
-
$4,287 USD
View
Price last confirmed 32 days ago
A
Retailer 12
-
$4,515 USD
View
A
Retailer 13
-
$4,561 USD
View
A
Retailer 14
-
$4,618 USD
£3,636 GBP
View
A
Retailer 15
-
$4,972 USD
View
A
Retailer 16
-
$5,180 USD
View
A
Retailer 17
-
$5,514 USD
€5,251 EUR
View
Retailer 18
-
$6,380 USD
View
Price last confirmed 15 days ago
B+
Retailer 19
-
$7,303 USD
ZAR 117,987 ZAR
View
B+
Retailer 20
-
$7,350 USD
A$11,308 AUD
View
B+
Retailer 21
-
$7,808 USD
View
B+
Retailer 22
-
$8,574 USD
View
B+
Retailer 23
-
$8,697 USD
£6,848 GBP
View
B+
Retailer 24
-
$9,029 USD
View
B+
Retailer 25
-
$10,954 USD
A$16,852 AUD
View
B+
Retailer 26
-
$11,944 USD
View
B
Retailer 27
-
$12,377 USD
SGD 16,726 SGD
View
B
Retailer 28
-
$12,720 USD
View
Most Expensive
B
Do Amore Diamonds
27-0BEDE994D · Nov 2
$18,440 USD
View
28 more retailers have this diamond
Prices start from $3,108 USDSave up to $15,332 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
4.56ct Round
$3,108 USD