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Heart|Lab Grown|IGI

3.57ct D FL Heart Lab Grown Diamond

EX • D/FL • IGI LG817695374

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG817695374

Diamond specifications and retailer prices

From $4,516 AUD
$3,172 USD
As of October 30, 2026
Save $18,270 AUD (80%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $22,786 AUD at With Clarity · As of October 30, 2026
View at With Clarity

About this 3.57ct lab-grown heart diamond

This 3.57ct 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 LG817695374 or 817695374. Listed at 22 retailers as of October 30, 2026, with prices from $4,516 to $22,786, a $18,270 spread on the same certified stone. With Clarity lists it at $22,786. 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

3.57
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817695374
Dimensions9.48 × 10.46 × 6.06 mm
L/W Ratio1.10
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
9.48 mm10.46 mm3.57 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817695374
Side View
Table 59.0%Crown 37.3°Girdle: STK-THKPavilion 38.2°Culet: NoneDepth 57.9%

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: $17,055 AUD|Low: $4,516 AUD|High: $24,358 AUD|Avg: $9,682 AUD|-30.0%
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
With Clarity
October 30, 2026
Retailer 5$4,516 AUD
Retailer 18$4,913 AUD
Retailer 3$5,131 AUD
Retailer 7$5,237 AUD
Retailer 8$5,237 AUD
Retailer 2$5,460 AUD
Retailer 15$5,962 AUD
Retailer 4$6,298 AUD
Retailer 9$6,546 AUD
Retailer 17$6,586 AUD
Retailer 12$6,959 AUD
Retailer 6$8,136 AUD
Retailer 13$9,912 AUD
Retailer 11$12,160 AUD
Retailer 16$12,800 AUD
Retailer 14$13,348 AUD
Retailer 1$17,055 AUD
Retailer 10$18,299 AUD
With Clarity$22,786 AUD

30 data points across 19 retailers

22 retailers$4,516 AUD to $22,786 AUD

A
Cheapest Retailer
-
$4,516 AUD
$3,172 USD
A
Retailer 2
-
$4,913 AUD
$3,451 USD
View
A
Retailer 3
-
$5,131 AUD
$3,604 USD
View
A
Retailer 4
-
$5,237 AUD
$3,679 USD
View
Retailer 5
-
$5,237 AUD
$3,679 USD
View
Price last confirmed 18 days ago
A
Retailer 6
-
$5,460 AUD
$3,835 USD
View
B+
Retailer 7
-
$5,962 AUD
$4,188 USD
View
Final sale: no returns
B+
Retailer 8
-
$6,298 AUD
$4,424 USD
View
B+
Retailer 9
-
$6,546 AUD
$4,598 USD
View
B+
Retailer 10
-
$6,586 AUD
$4,626 USD
View
B+
Retailer 11
-
$6,959 AUD
£3,849 GBP
View
B+
Retailer 12
-
$8,136 AUD
$5,715 USD
View
Retailer 13
-
$8,254 AUD
$5,798 USD
View
Price last confirmed 31 days ago
B+
Retailer 14
-
$9,912 AUD
€6,631 EUR
View
B+
Retailer 15
-
$12,160 AUD
ZAR 137,994 ZAR
View
B+
Retailer 16
-
$12,800 AUD
$8,991 USD
View
B+
Retailer 17
-
$13,071 AUD
$9,182 USD
View
B+
Retailer 18
-
$13,348 AUD
£7,383 GBP
View
B
Retailer 19
-
$17,055 AUD
$11,980 USD
View
B
Retailer 20
-
$18,299 AUD
$12,854 USD
View
B
Retailer 21
-
$20,808 AUD
SGD 19,752 SGD
View
Most Expensive
B
With Clarity
817695374 · Oct 30
$22,786 AUD
$16,006 USD
View
21 more retailers have this diamond
Prices start from $4,516 AUDSave up to $18,270 AUD

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
3.57ct Heart
$4,516 AUD