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Princess|Lab Grown|IGI

4.28ct D FL Princess Lab Grown Diamond

EX • D/FL • IGI LG813651576

Shape and cutting style on the report: Princess cut

Certificate IGI LG813651576

Diamond specifications and retailer prices

From $10,658 AUD
$7,487 USD
As of October 30, 2026
Save $30,556 AUD (74%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $41,214 AUD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 4.28ct lab-grown princess diamond

This 4.28ct lab-grown princess sits in the three to five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG813651576 or 813651576. Listed at 19 retailers as of October 30, 2026, with prices from $10,658 to $41,214, a $30,556 spread on the same certified stone. Taylor and Hart lists it at $41,214. 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
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.5°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813651576
Dimensions8.95 × 8.70 × 6.29 mm
L/W Ratio1.03
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
8.95 mm8.70 mm4.28 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813651576
Side View
Table 69.0%Crown 38.5°Girdle: MED-STKPavilion 39.5°Culet: NoneDepth 72.3%

Caratlytics Score

How it works →
A
Excellent
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: $15,105 AUD|Low: $10,658 AUD|High: $48,596 AUD|Avg: $19,797 AUD|-19.2%
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
Retailer 17
Taylor and Hart
October 31, 2026
Retailer 8$10,658 AUD
Retailer 5$11,070 AUD
Retailer 13$11,086 AUD
Retailer 15$11,363 AUD
Retailer 6$11,937 AUD
Retailer 12$12,286 AUD
Retailer 3$12,364 AUD
Retailer 9$13,904 AUD
Retailer 14$13,978 AUD
Retailer 16$14,319 AUD
Retailer 17$14,991 AUD
Retailer 1$15,105 AUD
Retailer 7$17,704 AUD
Retailer 10$19,606 AUD
Retailer 4$22,608 AUD
Retailer 11$24,406 AUD
Retailer 2$34,422 AUD
Taylor and Hart$41,214 AUD

38 data points across 18 retailers

19 retailers$10,658 AUD to $41,214 AUD

A
Cheapest Retailer
-
$10,658 AUD
$7,487 USD
A
Retailer 2
-
$11,070 AUD
$7,776 USD
View
A
Retailer 3
-
$11,086 AUD
$7,787 USD
View
A
Retailer 4
-
$11,363 AUD
$7,982 USD
View
A
Retailer 5
-
$11,937 AUD
$8,385 USD
View
Final sale: no returns
A
Retailer 6
-
$12,286 AUD
$8,630 USD
View
A
Retailer 7
-
$12,364 AUD
$8,685 USD
View
Retailer 8
-
$12,364 AUD
$8,685 USD
View
Price last confirmed 15 days ago
A
Retailer 9
-
$13,904 AUD
$9,767 USD
View
A
Retailer 10
-
$13,978 AUD
$9,819 USD
View
A
Retailer 11
-
$14,319 AUD
$10,058 USD
View
A
Retailer 12
-
$14,991 AUD
$10,530 USD
View
A
Retailer 13
-
$15,105 AUD
£8,355 GBP
View
B+
Retailer 14
-
$17,704 AUD
£9,792 GBP
View
B+
Retailer 15
-
$19,606 AUD
€13,116 EUR
View
B+
Retailer 16
-
$22,608 AUD
$15,881 USD
View
B+
Retailer 17
-
$24,406 AUD
£13,499 GBP
View
B
Retailer 18
-
$34,422 AUD
$24,180 USD
View
Most Expensive
B
Taylor and Hart
UNPJEEV · Oct 31
$41,214 AUD
$28,951 USD
View
18 more retailers have this diamond
Prices start from $10,658 AUDSave up to $30,556 AUD

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 Princess
$10,658 AUD