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1.28ct D VVS1 Round Lab Grown Diamond

ID • D/VVS1 • IGI LG754520678

Shape and cutting style on the report: Round brilliant

Certificate IGI LG754520678

Diamond specifications and retailer prices

From $392 NZD
$221 USD
As of October 29, 2026
Save $3,574 NZD (90%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,966 NZD 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 LG754520678 or 754520678. Listed at 22 retailers as of October 27, 2026, with prices from $392 to $3,966, a $3,574 spread on the same certified stone. Queensmith lists it at $3,966. 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 angle33.9°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754520678
Dimensions6.96 × 6.99 × 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
6.96 mm6.99 mm1.28 ctD / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754520678
Side View
Table 59.0%Crown 33.9°Girdle: MED-STKPavilion 41.3°Culet: NoneDepth 61.3%

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: Oct 29
Current: $883 NZD|Low: $376 NZD|High: $1,974 NZD|Avg: $954 NZD|+6.8%
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
October 31, 2026
Retailer 14$392 NZD
Retailer 7$440 NZD
Retailer 4$456 NZD
Retailer 15$486 NZD
Retailer 5$656 NZD
Retailer 9$774 NZD
Retailer 11$836 NZD
Retailer 1$883 NZD
Retailer 8$904 NZD
Retailer 6$921 NZD
Retailer 12$1,190 NZD
Retailer 13$1,267 NZD
Retailer 2$1,565 NZD
Retailer 3$1,863 NZD
Retailer 10$1,960 NZD

43 data points across 15 retailers

22 retailers$392 NZD to $3,966 NZD

A
Cheapest Retailer
-
$392 NZD
$221 USD
A
Retailer 2
-
$440 NZD
$248 USD
View
Final sale: no returns
A
Retailer 3
-
$456 NZD
$257 USD
View
A
Retailer 4
-
$486 NZD
$274 USD
View
A
Retailer 5
-
$545 NZD
HK$2,400 HKD
View
B+
Retailer 6
-
$656 NZD
$370 USD
View
A
Retailer 7
-
$774 NZD
£344 GBP
View
A
Retailer 8
-
$836 NZD
ZAR 7,614 ZAR
View
A
Retailer 9
-
$883 NZD
€474 EUR
View
A
Retailer 10
-
$904 NZD
£401 GBP
View
B+
Retailer 11
-
$921 NZD
$519 USD
View
B+
Retailer 12
-
$933 NZD
$526 USD
View
B+
Retailer 13
-
$1,190 NZD
A$1,032 AUD
View
B+
Retailer 14
-
$1,267 NZD
$714 USD
View
B
Retailer 15
-
$1,565 NZD
$882 USD
View
B
Retailer 16
-
$1,578 NZD
SGD 1,202 SGD
View
B
Retailer 17
-
$1,658 NZD
$935 USD
View
B
Retailer 18
-
$1,677 NZD
$945 USD
View
Retailer 19
-
$1,863 NZD
$1,050 USD
View
Price last confirmed 15 days ago
B
Retailer 20
-
$1,960 NZD
£870 GBP
View
B
Retailer 21
-
$2,238 NZD
$1,261 USD
View
Most Expensive
B
Queensmith
LG754520678 · Oct 27
$3,966 NZD
£1,760 GBP
View
21 more retailers have this diamond
Prices start from $392 NZDSave up to $3,574 NZD

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
$392 NZD