CaratHunter
Plans
Round|Lab Grown|IGI

1.28ct D VVS1 Round Lab Grown Diamond

ID • D/VVS1 • IGI LG786633620

Shape and cutting style on the report: Round brilliant

Certificate IGI LG786633620

Diamond specifications and retailer prices

From $315 AUD
$221 USD
As of October 29, 2026
Save $2,867 AUD (90%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $3,182 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 LG786633620 or 786633620. Listed at 23 retailers as of October 27, 2026, with prices from $315 to $3,182, a $2,867 spread on the same certified stone. Queensmith lists it at $3,182. 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 angle33.7°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786633620
Dimensions6.99 × 7.02 × 4.28 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
6.99 mm7.02 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG786633620
Side View
Table 57.0%Crown 33.7°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.0%

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 29
Current: $725 AUD|Low: $251 AUD|High: $1,796 AUD|Avg: $869 AUD|+6.2%
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
October 30, 2026
Retailer 5$353 AUD
Retailer 3$527 AUD
Retailer 11$623 AUD
Retailer 9$671 AUD
Retailer 8$710 AUD
Retailer 1$725 AUD
Retailer 4$739 AUD
Retailer 6$749 AUD
Retailer 10$955 AUD
Retailer 12$1,016 AUD
Retailer 13$1,174 AUD
Retailer 14$1,495 AUD
Retailer 7$1,573 AUD
Retailer 2$1,796 AUD

41 data points across 14 retailers

23 retailers$315 AUD to $3,182 AUD

A
Cheapest Retailer
-
$315 AUD
$221 USD
A
Retailer 2
-
$353 AUD
$248 USD
View
Final sale: no returns
A
Retailer 3
-
$366 AUD
$257 USD
View
A
Retailer 4
-
$390 AUD
$274 USD
View
A
Retailer 5
-
$437 AUD
HK$2,400 HKD
View
B+
Retailer 6
-
$527 AUD
$370 USD
View
Retailer 7
-
$623 AUD
£344 GBP
View
Price last confirmed 13 days ago
A
Retailer 8
-
$671 AUD
ZAR 7,614 ZAR
View
A
Retailer 9
-
$710 AUD
€475 EUR
View
A
Retailer 10
-
$725 AUD
£401 GBP
View
B+
Retailer 11
-
$739 AUD
$519 USD
View
B+
Retailer 12
-
$749 AUD
$526 USD
View
B+
Retailer 13
-
$955 AUD
View
B+
Retailer 14
-
$1,016 AUD
$714 USD
View
Retailer 15
-
$1,174 AUD
$825 USD
View
Price last confirmed 16 days ago
B
Retailer 16
-
$1,256 AUD
$882 USD
View
B
Retailer 17
-
$1,266 AUD
SGD 1,202 SGD
View
B
Retailer 18
-
$1,331 AUD
$935 USD
View
B
Retailer 19
-
$1,345 AUD
$945 USD
View
Retailer 20
-
$1,495 AUD
$1,050 USD
View
Price last confirmed 14 days ago
B+
Retailer 21
-
$1,573 AUD
£870 GBP
View
B
Retailer 22
-
$1,796 AUD
$1,261 USD
View
Most Expensive
B
Queensmith
LG786633620 · Oct 27
$3,182 AUD
£1,760 GBP
View
22 more retailers have this diamond
Prices start from $315 AUDSave up to $2,867 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