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Heart|Lab Grown|IGI

3.80ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG831604185

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG831604185

Diamond specifications and retailer prices

From $7,280 NZD
$4,103 USD
As of October 30, 2026
Save $22,728 NZD (76%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $30,008 NZD at Taylor and Hart · As of October 30, 2026
View at Taylor and Hart

About this 3.8ct lab-grown heart diamond

This 3.8ct 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 LG831604185 or 831604185. Listed at 19 retailers as of October 30, 2026, with prices from $7,280 to $30,008, a $22,728 spread on the same certified stone. Taylor and Hart lists it at $30,008. 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

3.80
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG831604185
Dimensions9.64 × 10.82 × 6.42 mm
L/W Ratio1.12
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
9.64 mm10.82 mm3.80 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831604185
Side View
Table 58.0%Crown 35.6°Girdle: STK-THKPavilion 40.4°Culet: NoneDepth 59.3%

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: $7,748 NZD|Low: $7,280 NZD|High: $31,650 NZD|Avg: $15,562 NZD|-5.0%
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
Retailer 18
Taylor and Hart
October 31, 2026
Retailer 17$7,280 NZD
Retailer 9$7,629 NZD
Retailer 1$7,748 NZD
Retailer 6$7,986 NZD
Retailer 3$8,444 NZD
Retailer 4$8,534 NZD
Retailer 8$9,217 NZD
Retailer 16$9,471 NZD
Retailer 14$9,911 NZD
Retailer 18$10,078 NZD
Retailer 11$10,437 NZD
Retailer 7$10,552 NZD
Retailer 5$18,185 NZD
Retailer 2$19,606 NZD
Retailer 15$20,257 NZD
Retailer 10$24,602 NZD
Retailer 13$27,389 NZD
Retailer 12$29,993 NZD
Taylor and Hart$30,008 NZD

5 data points across 19 retailers

19 retailers$7,280 NZD to $30,008 NZD

A
Cheapest Retailer
-
$7,280 NZD
$4,103 USD
A
Retailer 2
-
$7,629 NZD
$4,300 USD
View
A
Retailer 3
-
$7,748 NZD
$4,367 USD
View
Final sale: no returns
A
Retailer 4
-
$7,986 NZD
$4,501 USD
View
B+
Retailer 5
-
$8,444 NZD
$4,759 USD
View
B+
Retailer 6
-
$8,534 NZD
$4,810 USD
View
B+
Retailer 7
-
$9,217 NZD
$5,195 USD
View
B+
Retailer 8
-
$9,471 NZD
HK$41,700 HKD
View
B+
Retailer 9
-
$9,911 NZD
$5,586 USD
View
B+
Retailer 10
-
$10,078 NZD
£4,473 GBP
View
B+
Retailer 11
-
$10,437 NZD
£4,632 GBP
View
B+
Retailer 12
-
$10,552 NZD
$5,947 USD
View
B
Retailer 13
-
$18,185 NZD
£8,070 GBP
View
B
Retailer 14
-
$19,606 NZD
ZAR 178,516 ZAR
View
B
Retailer 15
-
$20,257 NZD
$11,417 USD
View
B
Retailer 16
-
$24,602 NZD
$13,866 USD
View
B
Retailer 17
-
$27,389 NZD
SGD 20,860 SGD
View
B
Retailer 18
-
$29,993 NZD
$16,904 USD
View
Most Expensive
B
Taylor and Hart
IR7L51J · Oct 30
$30,008 NZD
$16,913 USD
View
18 more retailers have this diamond
Prices start from $7,280 NZDSave up to $22,728 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
3.80ct Heart
$7,280 NZD