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Round|Lab Grown|IGI

1.28ct D VVS1 Round Lab Grown Diamond

EX • D/VVS1 • IGI LG778645702

Shape and cutting style on the report: Round brilliant

Certificate IGI LG778645702

Diamond specifications and retailer prices

From $315 AUD
$221 USD
As of November 1, 2026
Save $2,802 AUD (90%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $3,117 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 LG778645702 or 778645702. Listed at 25 retailers as of October 27, 2026, with prices from $315 to $3,117, a $2,802 spread on the same certified stone. Queensmith lists it at $3,117. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778645702
Dimensions6.89 × 6.92 × 4.32 mm
L/W Ratio1.00
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
6.89 mm6.92 mm1.28 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778645702
Side View
Table 58.0%Crown 35.6°Girdle: MED-STKPavilion 41.1°Culet: NoneDepth 62.6%

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: Nov 1
Current: $676 AUD|Low: $303 AUD|High: $1,812 AUD|Avg: $835 AUD|+1.7%
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
November 1, 2026
Retailer 17$315 AUD
Retailer 7$354 AUD
Retailer 5$367 AUD
Retailer 3$391 AUD
Retailer 9$391 AUD
Retailer 2$528 AUD
Retailer 11$621 AUD
Retailer 1$676 AUD
Retailer 13$710 AUD
Retailer 12$727 AUD
Retailer 4$741 AUD
Retailer 14$957 AUD
Retailer 16$1,019 AUD
Retailer 6$1,259 AUD
Retailer 8$1,522 AUD
Retailer 10$1,569 AUD
Retailer 15$1,755 AUD

42 data points across 17 retailers

25 retailers$315 AUD to $3,117 AUD

A
Cheapest Retailer
-
$315 AUD
$221 USD
A
Retailer 2
-
$354 AUD
$248 USD
View
Final sale: no returns
A
Retailer 3
-
$367 AUD
$257 USD
View
Retailer 4
-
$391 AUD
$274 USD
View
Price last confirmed 9 days ago
A
Retailer 5
-
$391 AUD
$274 USD
View
A
Retailer 6
-
$438 AUD
HK$2,400 HKD
View
B+
Retailer 7
-
$528 AUD
$370 USD
View
A
Retailer 8
-
$621 AUD
£343 GBP
View
A
Retailer 9
-
$676 AUD
ZAR 7,652 ZAR
View
A
Retailer 10
-
$710 AUD
€474 EUR
View
B+
Retailer 11
-
$727 AUD
£401 GBP
View
B+
Retailer 12
-
$741 AUD
$519 USD
View
B+
Retailer 13
-
$751 AUD
$526 USD
View
B+
Retailer 14
-
$957 AUD
View
B+
Retailer 15
-
$1,019 AUD
$714 USD
View
B
Retailer 16
-
$1,259 AUD
$882 USD
View
Retailer 17
-
$1,265 AUD
$886 USD
View
Price last confirmed 99 days ago
B
Retailer 18
-
$1,269 AUD
SGD 1,202 SGD
View
B
Retailer 19
-
$1,334 AUD
$935 USD
View
B
Retailer 20
-
$1,348 AUD
$945 USD
View
B
Retailer 21
-
$1,522 AUD
£840 GBP
View
B
Retailer 22
-
$1,569 AUD
£866 GBP
View
Retailer 23
-
$1,755 AUD
$1,230 USD
View
Price last confirmed 17 days ago
B
Retailer 24
-
$1,800 AUD
$1,261 USD
View
Most Expensive
B
Queensmith
LG778645702 · Oct 27
$3,117 AUD
£1,720 GBP
View
24 more retailers have this diamond
Prices start from $315 AUDSave up to $2,802 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
$315 AUD