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1.78ct H VVS1 Round Lab Grown Diamond

ID • H/VVS1 • IGI LG728521251

Shape and cutting style on the report: Round brilliant

Certificate IGI LG728521251

Diamond specifications and retailer prices

From $1,052 AUD
$739 USD
As of October 30, 2026
Save $1,647 AUD (61%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,699 AUD at MOH London · As of October 25, 2026
View at MOH London

About this 1.78ct lab-grown round diamond

This 1.78ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG728521251 or 728521251. Listed at 6 retailers as of October 25, 2026, with prices from $1,052 to $2,699, a $1,647 spread on the same certified stone. MOH London lists it at $2,699. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
H
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728521251
Dimensions7.77 × 7.77 × 4.83 mm
L/W Ratio1.00
Culet sizePointed
Top View
7.77 mm7.77 mm1.78 ctH / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728521251
Side View
Table 55.0%Crown 34.2°Girdle: MediumPavilion 40.8°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,699 AUD|Low: $765 AUD|High: $2,728 AUD|Avg: $1,380 AUD|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 25, 2026
Retailer 7$765 AUD
Retailer 5$904 AUD
Retailer 3$1,052 AUD
Retailer 2$1,098 AUD
Retailer 4$1,136 AUD
Retailer 6$2,270 AUD
MOH London$2,699 AUD

10 data points across 7 retailers

6 retailers$1,052 AUD to $2,699 AUD

Retailer 1
-
$765 AUD
HK$4,200 HKD
Price last confirmed 57 days ago
B+
Retailer 2
-
$1,052 AUD
$739 USD
View
B+
Retailer 3
-
$1,098 AUD
$771 USD
View
B+
Retailer 4
-
$1,136 AUD
$798 USD
View
B
Retailer 5
-
$2,270 AUD
$1,595 USD
View
Most Expensive
B
MOH London
LG728521251 · Oct 25
$2,699 AUD
£1,493 GBP
View
5 more retailers have this diamond
Prices start from $1,052 AUDSave up to $1,647 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.

B+
1.78ct Round
$1,052 AUD