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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 $13,284 NZD
$7,487 USD
As of October 30, 2026
Save $38,083 NZD (74%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $51,367 NZD 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 $13,284 to $51,367, a $38,083 spread on the same certified stone. Taylor and Hart lists it at $51,367. 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: $30,256 NZD|Low: $13,284 NZD|High: $60,567 NZD|Avg: $24,578 NZD|-12.7%
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
Retailer 17
Taylor and Hart
November 1, 2026
Retailer 8$13,284 NZD
Retailer 5$13,797 NZD
Retailer 13$13,816 NZD
Retailer 15$14,162 NZD
Retailer 6$14,878 NZD
Retailer 12$15,312 NZD
Retailer 3$15,410 NZD
Retailer 9$17,330 NZD
Retailer 14$17,422 NZD
Retailer 16$17,846 NZD
Retailer 17$18,683 NZD
Retailer 10$18,826 NZD
Retailer 7$22,065 NZD
Retailer 11$24,435 NZD
Retailer 4$28,178 NZD
Retailer 1$30,256 NZD
Retailer 2$42,902 NZD
Taylor and Hart$51,367 NZD

39 data points across 18 retailers

19 retailers$13,284 NZD to $51,367 NZD

A
Cheapest Retailer
-
$13,284 NZD
$7,487 USD
A
Retailer 2
-
$13,797 NZD
$7,776 USD
View
A
Retailer 3
-
$13,816 NZD
$7,787 USD
View
A
Retailer 4
-
$14,162 NZD
$7,982 USD
View
A
Retailer 5
-
$14,878 NZD
$8,385 USD
View
Final sale: no returns
A
Retailer 6
-
$15,312 NZD
$8,630 USD
View
A
Retailer 7
-
$15,410 NZD
$8,685 USD
View
Retailer 8
-
$15,410 NZD
$8,685 USD
View
Price last confirmed 16 days ago
A
Retailer 9
-
$17,330 NZD
$9,767 USD
View
A
Retailer 10
-
$17,422 NZD
$9,819 USD
View
A
Retailer 11
-
$17,846 NZD
$10,058 USD
View
A
Retailer 12
-
$18,683 NZD
$10,530 USD
View
A
Retailer 13
-
$18,826 NZD
£8,355 GBP
View
B+
Retailer 14
-
$22,065 NZD
£9,792 GBP
View
B+
Retailer 15
-
$24,435 NZD
€13,116 EUR
View
B+
Retailer 16
-
$28,178 NZD
$15,881 USD
View
B+
Retailer 17
-
$30,256 NZD
£13,427 GBP
View
B
Retailer 18
-
$42,902 NZD
$24,180 USD
View
Most Expensive
B
Taylor and Hart
UNPJEEV · Oct 31
$51,367 NZD
$28,951 USD
View
18 more retailers have this diamond
Prices start from $13,284 NZDSave up to $38,083 NZD

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
$13,284 NZD