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Round|Lab Grown|IGI

4.28ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG754563427

Shape and cutting style on the report: Round brilliant

Certificate IGI LG754563427

Diamond specifications and retailer prices

From $2,609 USD
As of October 29, 2026
Save $12,861 USD (83%) vs most expensive(unlock to see where)
29 retailers carry this diamond
Most expensive: $15,470 USD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 4.28ct lab-grown round diamond

This 4.28ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754563427 or 754563427. Listed at 29 retailers as of October 29, 2026, with prices from $2,609 to $15,470, a $12,861 spread on the same certified stone. Do Amore Diamonds lists it at $15,470. 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

4.28
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754563427
Dimensions10.47 × 10.51 × 6.36 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
10.47 mm10.51 mm4.28 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754563427
Side View
Table 58.0%Crown 34.3°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.7%

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: $15,470 USD|Low: $2,239 USD|High: $24,020 USD|Avg: $6,933 USD
Do Amore Diamonds
Retailer 2
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Retailer 22
October 30, 2026
Retailer 22$2,239 USD
Retailer 9$2,763 USD
Retailer 19$2,775 USD
Retailer 4$2,910 USD
Retailer 10$3,584 USD
Retailer 21$3,810 USD
Retailer 13$3,872 USD
Retailer 3$3,998 USD
Retailer 8$4,330 USD
Retailer 15$4,429 USD
Retailer 18$4,595 USD
Retailer 16$6,129 USD
Retailer 20$6,179 USD
Retailer 7$6,965 USD
Retailer 5$7,282 USD
Retailer 11$7,533 USD
Retailer 17$7,751 USD
Retailer 14$10,048 USD
Retailer 12$10,359 USD
Retailer 6$11,283 USD
Retailer 2$13,450 USD
Do Amore Diamonds$15,470 USD

36 data points across 22 retailers

29 retailers$2,609 USD to $15,470 USD

Retailer 1
-
$2,239 USD
£1,763 GBP
Price last confirmed 13 days ago
Retailer 2
-
$2,447 USD
View
Price last confirmed 24 days ago
Retailer 3
-
$2,447 USD
View
Price last confirmed 17 days ago
Retailer 4
-
$2,517 USD
View
Price last confirmed 31 days ago
A
Retailer 5
-
$2,609 USD
View
Retailer 6
-
$2,609 USD
View
Price last confirmed 28 days ago
A
Retailer 7
-
$2,763 USD
View
A
Retailer 8
-
$2,775 USD
View
Retailer 9
-
$2,879 USD
View
Price last confirmed 31 days ago
A
Retailer 10
-
$2,910 USD
View
Final sale: no returns
Retailer 11
-
$3,037 USD
View
Price last confirmed 37 days ago
A
Retailer 12
-
$3,584 USD
HK$28,000 HKD
View
A
Retailer 13
-
$3,810 USD
View
A
Retailer 14
-
$3,872 USD
£3,049 GBP
View
A
Retailer 15
-
$3,998 USD
View
A
Retailer 16
-
$4,330 USD
View
Retailer 17
-
$4,429 USD
View
Price last confirmed 30 days ago
A
Retailer 18
-
$4,595 USD
€4,376 EUR
View
A
Retailer 19
-
$6,129 USD
ZAR 99,021 ZAR
View
Retailer 20
-
$6,179 USD
A$9,506 AUD
View
Price last confirmed 8 days ago
B+
Retailer 21
-
$6,965 USD
View
B+
Retailer 22
-
$7,282 USD
View
B+
Retailer 23
-
$7,533 USD
View
B+
Retailer 24
-
$7,751 USD
£6,103 GBP
View
B+
Retailer 25
-
$10,048 USD
View
B+
Retailer 26
-
$10,359 USD
SGD 13,998 SGD
View
Retailer 27
-
$11,283 USD
A$17,358 AUD
View
Price last confirmed 21 days ago
B+
Retailer 28
-
$13,450 USD
View
Most Expensive
B
Do Amore Diamonds
27-17C00EE80 · Oct 29
$15,470 USD
View
28 more retailers have this diamond
Prices start from $2,609 USDSave up to $12,861 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
4.28ct Round
$2,609 USD