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Round|Lab Grown|IGI

1.25ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG781641923

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781641923

Diamond specifications and retailer prices

From $646 NZD
As of November 4, 2026
Save $2,221 NZD (77%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,168 NZD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.25ct lab-grown round diamond

This 1.25ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG781641923 or 781641923. Listed at 21 retailers as of November 4, 2026, with a 344% 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

1.25
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.4°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781641923
Dimensions6.88 × 6.84 × 4.27 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
6.88 mm6.84 mm1.25 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781641923
Side View
Table 58.0%Crown 35.4°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.2%

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 4
Current: $2,867 NZD|Low: $646 NZD|High: $2,906 NZD|Avg: $1,651 NZD|-1.3%
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
November 5, 2026
Retailer 3$646 NZD
Retailer 15$967 NZD
Retailer 14$993 NZD
Retailer 9$1,135 NZD
Retailer 11$1,164 NZD
Retailer 12$1,236 NZD
Retailer 8$1,267 NZD
Retailer 6$1,378 NZD
Retailer 10$1,763 NZD
Retailer 2$2,104 NZD
Retailer 5$2,131 NZD
Retailer 7$2,384 NZD
Retailer 13$2,475 NZD
Retailer 4$2,831 NZD
Retailer 1$2,867 NZD

40 data points across 15 retailers

21 retailers$646 NZD to $2,867 NZD

Retailer 1
-
$578 NZD
Price last confirmed 26 days ago
A
Retailer 2
-
$646 NZD
View
Final sale: no returns
Retailer 3
-
$671 NZD
View
Price last confirmed 23 days ago
Retailer 4
-
$717 NZD
View
Price last confirmed 20 days ago
Retailer 5
-
$717 NZD
View
Price last confirmed 34 days ago
A
Retailer 6
-
$967 NZD
View
A
Retailer 7
-
$993 NZD
View
A
Retailer 8
-
$1,135 NZD
View
A
Retailer 9
-
$1,164 NZD
View
A
Retailer 10
-
$1,236 NZD
View
A
Retailer 11
-
$1,267 NZD
View
A
Retailer 12
-
$1,378 NZD
View
B+
Retailer 13
-
$1,763 NZD
View
B+
Retailer 14
-
$2,104 NZD
View
Retailer 15
-
$2,131 NZD
View
Price last confirmed 31 days ago
Retailer 16
-
$2,306 NZD
View
Price last confirmed 36 days ago
B+
Retailer 17
-
$2,384 NZD
View
B
Retailer 18
-
$2,475 NZD
View
B
Retailer 19
-
$2,831 NZD
View
B+
Retailer 20
-
$2,867 NZD
View
Most Expensive
Queensmith
LG781641923 · Oct 27
$4,168 NZD
£1,850 GBP
View
Price last confirmed 8 days ago
20 more retailers have this diamond
Prices start from $646 NZDSave up to $2,221 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
1.25ct Round
$646 NZD