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Radiant|Lab Grown|IGI

1.25ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG799644036

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

Certificate IGI LG799644036

Diamond specifications and retailer prices

From $585 NZD
£260 GBP
As of November 1, 2026
Save $3,407 NZD (85%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $4,285 NZD at Rare Carat · As of October 18, 2026
View at Rare Carat

About this 1.25ct lab-grown radiant diamond

This 1.25ct lab-grown radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799644036 or 799644036. Listed at 8 retailers as of November 1, 2026, with a 582% 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.7°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799644036
Dimensions7.48 × 5.12 × 3.74 mm
L/W Ratio1.46
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
7.48 mm5.12 mm1.25 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799644036
Side View
Table 67.0%Crown 28.7°Girdle: Slightly ThickPavilion 38.1°Culet: NoneDepth 73.0%

Caratlytics Score

How it works →
A+
Exceptional
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 1
Current: $4,285 NZD|Low: $470 NZD|High: $5,713 NZD|Avg: $1,965 NZD|+5.3%
Rare Carat
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
November 1, 2026
Retailer 5$470 NZD
Retailer 9$531 NZD
Retailer 2$585 NZD
Retailer 13$871 NZD
Retailer 4$1,194 NZD
Retailer 7$1,334 NZD
Retailer 3$1,366 NZD
Retailer 17$1,447 NZD
Retailer 8$1,521 NZD
Retailer 16$1,606 NZD
Retailer 12$1,661 NZD
Retailer 15$1,919 NZD
Retailer 14$2,280 NZD
Retailer 6$2,724 NZD
Retailer 10$3,478 NZD
Retailer 11$3,992 NZD
Rare Carat$4,285 NZD

20 data points across 17 retailers

8 retailers$585 NZD to $3,992 NZD

A+
Cheapest Retailer
-
$585 NZD
£260 GBP
A
Retailer 2
-
$871 NZD
$491 USD
View
B+
Retailer 3
-
$1,661 NZD
$936 USD
View
B+
Retailer 4
-
$1,919 NZD
$1,082 USD
View
B+
Retailer 5
-
$2,280 NZD
£1,012 GBP
View
B
Retailer 6
-
$3,478 NZD
$1,960 USD
View
B
Retailer 7
-
$3,992 NZD
$2,250 USD
View
Most Expensive
Rare Carat
MR-205299 · Oct 18
$4,285 NZD
$2,415 USD
View
Price last confirmed 14 days ago
7 more retailers have this diamond
Prices start from $585 NZDSave up to $3,407 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 Radiant
$585 NZD