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1.23ct D VS1 Round Lab Grown Diamond

ID • D/VS1 • IGI LG781618294

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781618294

Diamond specifications and retailer prices

From $375 NZD
$211 USD
As of November 3, 2026
Save $3,417 NZD (90%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $3,792 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG781618294 or 781618294. Listed at 22 retailers as of October 27, 2026, with prices from $375 to $3,792, a $3,417 spread on the same certified stone. Queensmith lists it at $3,792. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781618294
Dimensions6.85 × 6.89 × 4.22 mm
L/W Ratio1.01
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
6.85 mm6.89 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781618294
Side View
Table 57.0%Crown 34.6°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.5%

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: Nov 3
Current: $750 NZD|Low: $323 NZD|High: $1,977 NZD|Avg: $761 NZD|+3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 12$338 NZD
Retailer 11$375 NZD
Retailer 2$418 NZD
Retailer 4$418 NZD
Retailer 3$565 NZD
Retailer 9$709 NZD
Retailer 10$721 NZD
Retailer 1$750 NZD
Retailer 8$773 NZD
Retailer 7$1,019 NZD
Retailer 6$1,082 NZD
Retailer 5$1,952 NZD

38 data points across 12 retailers

22 retailers$375 NZD to $3,792 NZD

Retailer 1
-
$338 NZD
$190 USD
Price last confirmed 15 days ago
A
Retailer 2
-
$375 NZD
$211 USD
View
Final sale: no returns
A
Retailer 3
-
$391 NZD
$220 USD
View
A
Retailer 4
-
$418 NZD
$235 USD
View
Retailer 5
-
$418 NZD
$235 USD
View
Price last confirmed 9 days ago
A
Retailer 6
-
$478 NZD
HK$2,100 HKD
View
B+
Retailer 7
-
$565 NZD
$318 USD
View
A
Retailer 8
-
$709 NZD
£314 GBP
View
A
Retailer 9
-
$718 NZD
$404 USD
View
A
Retailer 10
-
$721 NZD
ZAR 6,556 ZAR
View
A
Retailer 11
-
$750 NZD
£332 GBP
View
B+
Retailer 12
-
$773 NZD
€414 EUR
View
B+
Retailer 13
-
$857 NZD
$482 USD
View
B+
Retailer 14
-
$1,019 NZD
A$882 AUD
View
B+
Retailer 15
-
$1,082 NZD
$609 USD
View
B+
Retailer 16
-
$1,344 NZD
$756 USD
View
B
Retailer 17
-
$1,364 NZD
SGD 1,037 SGD
View
B
Retailer 18
-
$1,404 NZD
$790 USD
View
B
Retailer 19
-
$1,439 NZD
$810 USD
View
B
Retailer 20
-
$1,952 NZD
£865 GBP
View
B
Retailer 21
-
$2,062 NZD
$1,160 USD
View
Most Expensive
B
Queensmith
LG781618294 · Oct 27
$3,792 NZD
£1,680 GBP
View
21 more retailers have this diamond
Prices start from $375 NZDSave up to $3,417 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
$375 NZD