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Round|Lab Grown|IGI

1.28ct D VVS1 Round Lab Grown Diamond

ID • D/VVS1 • IGI LG778645614

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778645614

Diamond specifications and retailer prices

From $354 AUD
$248 USD
As of November 3, 2026
Save $2,836 AUD (89%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,189 AUD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG778645614 or 778645614. Listed at 22 retailers as of October 27, 2026, with prices from $354 to $3,189, a $2,836 spread on the same certified stone. Queensmith lists it at $3,189. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778645614
Dimensions6.93 × 6.98 × 4.29 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
6.93 mm6.98 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778645614
Side View
Table 57.0%Crown 34.3°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
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: Nov 3
Current: $727 AUD|Low: $354 AUD|High: $1,587 AUD|Avg: $799 AUD|+6.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 2$354 AUD
Retailer 3$391 AUD
Retailer 11$528 AUD
Retailer 8$676 AUD
Retailer 7$713 AUD
Retailer 1$727 AUD
Retailer 12$741 AUD
Retailer 4$751 AUD
Retailer 5$957 AUD
Retailer 6$1,039 AUD
Retailer 10$1,498 AUD
Retailer 9$1,569 AUD

40 data points across 12 retailers

22 retailers$354 AUD to $3,189 AUD

Retailer 1
-
$303 AUD
$212 USD
Price last confirmed 32 days ago
A
Retailer 2
-
$354 AUD
$248 USD
View
Final sale: no returns
Retailer 3
-
$367 AUD
$257 USD
View
Price last confirmed 28 days ago
Retailer 4
-
$391 AUD
$274 USD
View
Price last confirmed 31 days ago
A
Retailer 5
-
$438 AUD
HK$2,400 HKD
View
B+
Retailer 6
-
$528 AUD
$370 USD
View
A
Retailer 7
-
$676 AUD
ZAR 7,652 ZAR
View
A
Retailer 8
-
$713 AUD
€476 EUR
View
A
Retailer 9
-
$727 AUD
£401 GBP
View
B+
Retailer 10
-
$741 AUD
$519 USD
View
B+
Retailer 11
-
$751 AUD
$526 USD
View
B+
Retailer 12
-
$957 AUD
View
B+
Retailer 13
-
$1,039 AUD
$728 USD
View
Retailer 14
-
$1,231 AUD
$863 USD
View
Price last confirmed 92 days ago
Retailer 15
-
$1,259 AUD
$882 USD
View
Price last confirmed 33 days ago
B
Retailer 16
-
$1,269 AUD
SGD 1,202 SGD
View
B
Retailer 17
-
$1,334 AUD
$935 USD
View
B
Retailer 18
-
$1,348 AUD
$945 USD
View
Retailer 19
-
$1,498 AUD
$1,050 USD
View
Price last confirmed 17 days ago
B+
Retailer 20
-
$1,569 AUD
£866 GBP
View
B
Retailer 21
-
$1,800 AUD
$1,261 USD
View
Most Expensive
B
Queensmith
LG778645614 · Oct 27
$3,189 AUD
£1,760 GBP
View
21 more retailers have this diamond
Prices start from $354 AUDSave up to $2,836 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
1.28ct Round
$354 AUD