CaratHunter
Plans
Round|Lab Grown|IGI

1.23ct D VVS1 Round Lab Grown Diamond

EX • D/VVS1 • IGI LG816607419

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816607419

Diamond specifications and retailer prices

From $380 NZD
As of November 3, 2026
Save $1,815 NZD (83%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $3,875 NZD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.23ct lab-grown round diamond

This 1.23ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG816607419 or 816607419. Listed at 25 retailers as of November 3, 2026, with a 478% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.1°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816607419
Dimensions6.99 × 7.02 × 4.09 mm
L/W Ratio1.00
Girdle conditionFaceted
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 mm1.23 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816607419
Side View
Table 62.0%Crown 33.1°Girdle: MediumPavilion 40.4°Culet: NoneDepth 58.3%

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: Nov 3
Current: $859 NZD|Low: $364 NZD|High: $2,129 NZD|Avg: $985 NZD|+3.4%
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
November 5, 2026
Retailer 2$380 NZD
Retailer 3$422 NZD
Retailer 5$470 NZD
Retailer 4$635 NZD
Retailer 6$743 NZD
Retailer 10$811 NZD
Retailer 8$853 NZD
Retailer 1$859 NZD
Retailer 9$1,150 NZD
Retailer 13$1,446 NZD
Retailer 7$1,517 NZD
Retailer 11$1,882 NZD
Retailer 12$2,093 NZD

40 data points across 13 retailers

25 retailers$380 NZD to $2,194 NZD

A
Cheapest Retailer
-
$380 NZD
A
Retailer 2
-
$422 NZD
View
Final sale: no returns
A
Retailer 3
-
$440 NZD
View
Retailer 4
-
$470 NZD
View
Price last confirmed 11 days ago
A
Retailer 5
-
$470 NZD
View
A
Retailer 6
-
$522 NZD
View
B+
Retailer 7
-
$635 NZD
View
A
Retailer 8
-
$743 NZD
View
A
Retailer 9
-
$811 NZD
View
B+
Retailer 10
-
$853 NZD
View
B+
Retailer 11
-
$859 NZD
View
B+
Retailer 12
-
$871 NZD
View
B+
Retailer 13
-
$1,150 NZD
View
B+
Retailer 14
-
$1,240 NZD
View
Retailer 15
-
$1,446 NZD
View
Price last confirmed 15 days ago
B
Retailer 16
-
$1,511 NZD
View
B
Retailer 17
-
$1,517 NZD
View
B
Retailer 18
-
$1,526 NZD
View
B
Retailer 19
-
$1,604 NZD
View
B
Retailer 20
-
$1,611 NZD
View
B
Retailer 21
-
$1,838 NZD
View
B
Retailer 22
-
$1,882 NZD
View
B
Retailer 23
-
$2,093 NZD
View
B
Retailer 24
-
$2,194 NZD
View
Most Expensive
Queensmith
LG816607419 · Oct 27
$3,875 NZD
£1,720 GBP
View
Price last confirmed 8 days ago
24 more retailers have this diamond
Prices start from $380 NZDSave up to $1,815 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
1.23ct Round
$380 NZD