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Round|Lab Grown|IGI

3.78ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG741518616

Shape and cutting style on the report: Round brilliant

Certificate IGI LG741518616

Diamond specifications and retailer prices

From $948 AUD
$666 USD
As of October 29, 2026
Save $7,479 AUD (89%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,427 AUD at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 3.78ct lab-grown round diamond

This 3.78ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG741518616 or 741518616. Listed at 13 retailers as of October 29, 2026, with prices from $948 to $8,427, a $7,479 spread on the same certified stone. Do Amore Diamonds lists it at $8,427. 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

3.78
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG741518616
Dimensions10.18 × 10.13 × 6.03 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.18 mm10.13 mm3.78 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG741518616
Side View
Table 59.0%Crown 33.2°Girdle: THN-MEDPavilion 40.8°Culet: NoneDepth 59.4%

Caratlytics Score

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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: Oct 29
Current: $8,427 AUD|Low: $925 AUD|High: $8,967 AUD|Avg: $3,587 AUD|-1.5%
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
Retailer 15
Retailer 16
October 30, 2026
Retailer 14$948 AUD
Retailer 10$1,032 AUD
Retailer 2$1,667 AUD
Retailer 3$1,792 AUD
Retailer 9$1,793 AUD
Retailer 6$1,872 AUD
Retailer 5$1,887 AUD
Retailer 12$2,740 AUD
Retailer 13$2,810 AUD
Retailer 8$2,924 AUD
Retailer 15$3,415 AUD
Retailer 7$4,213 AUD
Retailer 11$4,774 AUD
Retailer 4$7,416 AUD
Retailer 16$8,412 AUD
Do Amore Diamonds$8,427 AUD

27 data points across 16 retailers

13 retailers$948 AUD to $8,427 AUD

A
Cheapest Retailer
-
$948 AUD
$666 USD
A
Retailer 2
-
$1,032 AUD
$725 USD
View
A
Retailer 3
-
$1,667 AUD
£922 GBP
View
A
Retailer 4
-
$1,792 AUD
$1,259 USD
View
B+
Retailer 5
-
$1,793 AUD
$1,260 USD
View
Retailer 6
-
$2,740 AUD
View
Price last confirmed 8 days ago
B+
Retailer 7
-
$2,810 AUD
$1,974 USD
View
B+
Retailer 8
-
$3,415 AUD
$2,399 USD
View
B
Retailer 9
-
$3,978 AUD
$2,795 USD
View
B
Retailer 10
-
$4,774 AUD
£2,641 GBP
View
B
Retailer 11
-
$7,416 AUD
$5,210 USD
View
B
Retailer 12
-
$8,412 AUD
$5,910 USD
View
Most Expensive
B
Do Amore Diamonds
27-86D1FECF7 · Oct 29
$8,427 AUD
$5,920 USD
View
12 more retailers have this diamond
Prices start from $948 AUDSave up to $7,479 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
3.78ct Round
$948 AUD