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Heart|Lab Grown|IGI

3.10ct D IF Heart Lab Grown Diamond

ID • D/IF • IGI LG825660975

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG825660975

Diamond specifications and retailer prices

From $2,989 NZD
As of November 3, 2026
Save $19,396 NZD (87%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $22,385 NZD at Brilliant Earth · As of November 3, 2026
View at Brilliant Earth

About this 3.1ct lab-grown heart diamond

This 3.1ct lab-grown heart 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 LG825660975 or 825660975. Listed at 7 retailers as of November 3, 2026, with prices from $2,989 to $22,385, a $19,396 spread on the same certified stone. Brilliant Earth lists it at $22,385. 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

3.10
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825660975
Dimensions8.92 × 9.94 × 6.00 mm
L/W Ratio1.11
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
8.92 mm9.94 mm3.10 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825660975
Side View
Table 55.0%Crown 36.3°Girdle: STK-THKPavilion 40.5°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
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: Nov 3
Current: $22,385 NZD|Low: $2,989 NZD|High: $22,385 NZD|Avg: $7,157 NZD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 3, 2026
Retailer 5$2,989 NZD
Retailer 4$3,920 NZD
Retailer 2$4,374 NZD
Retailer 6$8,284 NZD
Retailer 3$8,846 NZD
Retailer 7$10,360 NZD
Brilliant Earth$22,385 NZD

34 data points across 7 retailers

7 retailers$2,989 NZD to $22,385 NZD

A
Cheapest Retailer
-
$2,989 NZD
Final sale: no returns
A
Retailer 2
-
$3,920 NZD
View
A
Retailer 3
-
$4,374 NZD
View
B+
Retailer 4
-
$8,284 NZD
View
B+
Retailer 5
-
$8,846 NZD
View
B+
Retailer 6
-
$10,360 NZD
View
Most Expensive
B
Brilliant Earth
22469001A · Nov 3
$22,385 NZD
$12,590 USD
View
6 more retailers have this diamond
Prices start from $2,989 NZDSave up to $19,396 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
3.10ct Heart
$2,989 NZD