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Round|Lab Grown|IGI

4.28ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG744513762

Shape and cutting style on the report: Round brilliant

Certificate IGI LG744513762

Diamond specifications and retailer prices

From $2,468 SGD
£1,520 GBP
As of October 30, 2026
Save $14,726 SGD (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $17,194 SGD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 LG744513762 or 744513762. Listed at 18 retailers as of October 30, 2026, with prices from $2,468 to $17,194, a $14,726 spread on the same certified stone. Brilliant Earth lists it at $17,194. 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
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744513762
Dimensions10.35 × 10.42 × 6.42 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
10.35 mm10.42 mm4.28 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744513762
Side View
Table 57.0%Crown 34.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $17,194 SGD|Low: $2,439 SGD|High: $30,707 SGD|Avg: $7,302 SGD|-44.0%
Brilliant Earth
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
Retailer 17
October 31, 2026
Retailer 10$2,468 SGD
Retailer 13$2,485 SGD
Retailer 4$2,704 SGD
Retailer 14$3,007 SGD
Retailer 7$3,739 SGD
Retailer 3$4,373 SGD
Retailer 12$4,514 SGD
Retailer 16$4,733 SGD
Retailer 9$4,862 SGD
Retailer 2$5,125 SGD
Retailer 5$6,636 SGD
Retailer 6$6,981 SGD
Retailer 11$7,849 SGD
Retailer 17$8,644 SGD
Retailer 8$14,086 SGD
Retailer 15$17,092 SGD
Brilliant Earth$17,194 SGD

38 data points across 17 retailers

18 retailers$2,468 SGD to $17,194 SGD

A+
Cheapest Retailer
-
$2,468 SGD
£1,520 GBP
A
Retailer 2
-
$2,485 SGD
$1,944 USD
View
A
Retailer 3
-
$2,704 SGD
$2,115 USD
View
A
Retailer 4
-
$3,007 SGD
$2,352 USD
View
A
Retailer 5
-
$3,124 SGD
$2,444 USD
View
Final sale: no returns
A
Retailer 6
-
$3,739 SGD
$2,925 USD
View
A
Retailer 7
-
$4,373 SGD
$3,421 USD
View
A
Retailer 8
-
$4,514 SGD
$3,531 USD
View
A
Retailer 9
-
$4,733 SGD
$3,702 USD
View
A
Retailer 10
-
$4,862 SGD
$3,803 USD
View
A
Retailer 11
-
$5,125 SGD
€3,818 EUR
View
A
Retailer 12
-
$6,636 SGD
$5,191 USD
View
Retailer 13
-
$6,981 SGD
A$8,401 AUD
View
Price last confirmed 8 days ago
B+
Retailer 14
-
$7,849 SGD
$6,140 USD
View
B+
Retailer 15
-
$8,644 SGD
£5,324 GBP
View
Retailer 16
-
$14,086 SGD
A$16,951 AUD
View
Price last confirmed 22 days ago
B
Retailer 17
-
$17,092 SGD
$13,370 USD
View
Most Expensive
B
Brilliant Earth
17187543Y · Oct 30
$17,194 SGD
$13,450 USD
View
17 more retailers have this diamond
Prices start from $2,468 SGDSave up to $14,726 SGD

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
$2,468 SGD