CaratHunter
Plans
Heart|Lab Grown|IGI

4.25ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG804660315

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG804660315

Diamond specifications and retailer prices

From $7,305 NZD
$4,117 USD
As of October 30, 2026
Save $43,156 NZD (86%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $50,461 NZD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 4.25ct lab-grown heart diamond

This 4.25ct lab-grown heart 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 LG804660315 or 804660315. Listed at 13 retailers as of October 30, 2026, with prices from $7,305 to $50,461, a $43,156 spread on the same certified stone. Do Amore Diamonds lists it at $50,461. 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

4.25
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG804660315
Dimensions10.24 × 10.80 × 6.37 mm
L/W Ratio1.05
Girdle conditionFaceted
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
10.24 mm10.80 mm4.25 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG804660315
Side View
Table 61.0%Crown 36.4°Girdle: STK-THKPavilion 38.6°Culet: NoneDepth 59.0%

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: $50,461 NZD|Low: $7,305 NZD|High: $56,529 NZD|Avg: $17,556 NZD|-10.7%
Do Amore Diamonds
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
October 31, 2026
Retailer 9$7,305 NZD
Retailer 4$7,686 NZD
Retailer 12$7,913 NZD
Retailer 2$8,563 NZD
Retailer 3$8,596 NZD
Retailer 5$9,666 NZD
Retailer 13$11,072 NZD
Retailer 14$11,735 NZD
Retailer 11$13,172 NZD
Retailer 7$16,124 NZD
Retailer 6$18,450 NZD
Retailer 10$19,550 NZD
Retailer 8$27,963 NZD
Do Amore Diamonds$50,461 NZD

31 data points across 14 retailers

13 retailers$7,305 NZD to $50,461 NZD

A
Cheapest Retailer
-
$7,305 NZD
$4,117 USD
A
Retailer 2
-
$7,686 NZD
$4,332 USD
View
A
Retailer 3
-
$7,913 NZD
$4,460 USD
View
A
Retailer 4
-
$8,563 NZD
$4,826 USD
View
A
Retailer 5
-
$8,596 NZD
$4,845 USD
View
A
Retailer 6
-
$9,666 NZD
$5,448 USD
View
Final sale: no returns
A
Retailer 7
-
$11,072 NZD
$6,240 USD
View
A
Retailer 8
-
$11,735 NZD
$6,614 USD
View
A
Retailer 9
-
$13,172 NZD
$7,424 USD
View
A
Retailer 10
-
$16,124 NZD
€8,655 EUR
View
B+
Retailer 11
-
$19,550 NZD
£8,676 GBP
View
B+
Retailer 12
-
$27,963 NZD
$15,760 USD
View
Most Expensive
B
Do Amore Diamonds
27-FF0CCDED2 · Oct 31
$50,461 NZD
$28,440 USD
View
12 more retailers have this diamond
Prices start from $7,305 NZDSave up to $43,156 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
4.25ct Heart
$7,305 NZD