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Heart|Lab Grown|IGI

3.54ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG800611923

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG800611923

Diamond specifications and retailer prices

From $6,733 NZD
$3,795 USD
As of October 30, 2026
Save $21,496 NZD (76%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $28,229 NZD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.54ct lab-grown heart diamond

This 3.54ct 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 LG800611923 or 800611923. Listed at 22 retailers as of October 30, 2026, with prices from $6,733 to $28,229, a $21,496 spread on the same certified stone. Brilliant Earth lists it at $28,229. 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

3.54
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG800611923
Dimensions10.65 × 9.20 × 6.19 mm
L/W Ratio1.16
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
10.65 mm9.20 mm3.54 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG800611923
Side View
Table 58.0%Crown 35.2°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 58.1%

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: $28,229 NZD|Low: $6,464 NZD|High: $33,024 NZD|Avg: $14,690 NZD|-6.2%
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
Retailer 18
Retailer 19
Retailer 20
October 31, 2026
Retailer 4$6,733 NZD
Retailer 8$7,056 NZD
Retailer 9$7,417 NZD
Retailer 10$7,539 NZD
Retailer 5$7,810 NZD
Retailer 3$7,922 NZD
Retailer 7$8,135 NZD
Retailer 16$8,812 NZD
Retailer 20$9,313 NZD
Retailer 2$9,726 NZD
Retailer 6$9,759 NZD
Retailer 19$11,497 NZD
Retailer 18$16,819 NZD
Retailer 17$18,132 NZD
Retailer 15$18,880 NZD
Retailer 11$22,742 NZD
Retailer 14$25,510 NZD
Retailer 12$27,622 NZD
Retailer 13$27,942 NZD
Brilliant Earth$28,229 NZD

41 data points across 20 retailers

22 retailers$6,733 NZD to $28,229 NZD

A
Cheapest Retailer
-
$6,733 NZD
$3,795 USD
A
Retailer 2
-
$7,056 NZD
$3,977 USD
View
A
Retailer 3
-
$7,417 NZD
$4,180 USD
View
B+
Retailer 4
-
$7,539 NZD
$4,249 USD
View
Final sale: no returns
Retailer 5
-
$7,810 NZD
$4,402 USD
View
Price last confirmed 18 days ago
B+
Retailer 6
-
$7,810 NZD
$4,402 USD
View
A
Retailer 7
-
$7,922 NZD
$4,465 USD
View
B+
Retailer 8
-
$8,135 NZD
$4,585 USD
View
B+
Retailer 9
-
$8,812 NZD
HK$38,800 HKD
View
B+
Retailer 10
-
$9,313 NZD
$5,249 USD
View
B+
Retailer 11
-
$9,726 NZD
£4,316 GBP
View
B+
Retailer 12
-
$9,759 NZD
$5,500 USD
View
B+
Retailer 13
-
$11,497 NZD
$6,480 USD
View
B+
Retailer 14
-
$16,819 NZD
£7,464 GBP
View
B+
Retailer 15
-
$18,029 NZD
$10,161 USD
View
B+
Retailer 16
-
$18,132 NZD
ZAR 165,090 ZAR
View
B
Retailer 17
-
$18,880 NZD
$10,641 USD
View
B
Retailer 18
-
$22,742 NZD
$12,818 USD
View
B
Retailer 19
-
$25,510 NZD
SGD 19,429 SGD
View
B
Retailer 20
-
$27,622 NZD
$15,568 USD
View
B
Retailer 21
-
$27,942 NZD
$15,748 USD
View
Most Expensive
B
Brilliant Earth
20146947A · Oct 30
$28,229 NZD
$15,910 USD
View
21 more retailers have this diamond
Prices start from $6,733 NZDSave up to $21,496 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
3.54ct Heart
$6,733 NZD