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Radiant|Lab Grown|IGI

1.28ct D VVS1 Radiant Lab Grown Diamond

ID • D/VVS1 • IGI LG828688726

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG828688726

Diamond specifications and retailer prices

From $312 AUD
$219 USD
As of October 31, 2026
Save $2,322 AUD (88%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,634 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.28ct lab-grown radiant diamond

This 1.28ct lab-grown radiant 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 LG828688726 or 828688726. Listed at 18 retailers as of October 30, 2026, with prices from $312 to $2,634, a $2,322 spread on the same certified stone. Brilliant Earth lists it at $2,634. 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 angle47°
Pavilion angle35.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG828688726
Dimensions7.54 × 5.37 × 3.58 mm
L/W Ratio1.40
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.54 mm5.37 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG828688726
Side View
Table 65.0%Crown 47°Girdle: STK-THKPavilion 35.5°Culet: NoneDepth 66.7%

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 31
Current: $2,634 AUD|Low: $259 AUD|High: $2,833 AUD|Avg: $1,097 AUD|+1.1%
Brilliant Earth
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
Retailer 18
October 31, 2026
Retailer 12$312 AUD
Retailer 11$322 AUD
Retailer 3$394 AUD
Retailer 13$467 AUD
Retailer 8$595 AUD
Retailer 4$633 AUD
Retailer 2$646 AUD
Retailer 17$804 AUD
Retailer 9$861 AUD
Retailer 16$905 AUD
Retailer 14$1,112 AUD
Retailer 6$1,125 AUD
Retailer 15$1,163 AUD
Retailer 18$1,184 AUD
Retailer 10$1,384 AUD
Retailer 7$1,530 AUD
Retailer 5$1,627 AUD
Brilliant Earth$2,634 AUD

29 data points across 18 retailers

18 retailers$312 AUD to $2,634 AUD

A
Cheapest Retailer
-
$312 AUD
$219 USD
Final sale: no returns
A
Retailer 2
-
$322 AUD
$226 USD
View
A
Retailer 3
-
$394 AUD
£218 GBP
View
B+
Retailer 4
-
$467 AUD
$328 USD
View
Retailer 5
-
$595 AUD
ZAR 6,754 ZAR
View
Price last confirmed 14 days ago
A
Retailer 6
-
$633 AUD
£350 GBP
View
A
Retailer 7
-
$646 AUD
€432 EUR
View
A
Retailer 8
-
$804 AUD
$565 USD
View
Retailer 9
-
$861 AUD
View
Price last confirmed 14 days ago
B+
Retailer 10
-
$905 AUD
$636 USD
View
B+
Retailer 11
-
$1,112 AUD
$781 USD
View
B+
Retailer 12
-
$1,125 AUD
SGD 1,068 SGD
View
B+
Retailer 13
-
$1,163 AUD
$817 USD
View
B+
Retailer 14
-
$1,184 AUD
$832 USD
View
Retailer 15
-
$1,384 AUD
View
Price last confirmed 24 days ago
Retailer 16
-
$1,530 AUD
$1,075 USD
View
Price last confirmed 13 days ago
B+
Retailer 17
-
$1,627 AUD
£900 GBP
View
Most Expensive
B
Brilliant Earth
21325021A · Oct 30
$2,634 AUD
$1,850 USD
View
17 more retailers have this diamond
Prices start from $312 AUDSave up to $2,322 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 Radiant
$312 AUD