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Radiant|Lab Grown|IGI

1.28ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG801686051

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

Certificate IGI LG801686051

Diamond specifications and retailer prices

From $746 NZD
$420 USD
As of November 1, 2026
Save $3,999 NZD (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $4,745 NZD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 1.28ct lab-grown radiant diamond

This 1.28ct 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 LG801686051 or 801686051. Listed at 15 retailers as of November 1, 2026, with prices from $746 to $4,745, a $3,999 spread on the same certified stone. Do Amore Diamonds lists it at $4,745. 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
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.5°
Pavilion angle35.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801686051
Dimensions7.76 × 5.38 × 3.59 mm
L/W Ratio1.44
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
7.76 mm5.38 mm1.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801686051
Side View
Table 63.0%Crown 42.5°Girdle: MED-STKPavilion 35.2°Culet: NoneDepth 66.7%

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 1
Current: $4,745 NZD|Low: $746 NZD|High: $6,043 NZD|Avg: $2,317 NZD|-9.8%
Do Amore Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 4$746 NZD
Retailer 2$754 NZD
Retailer 8$947 NZD
Retailer 12$978 NZD
Retailer 10$1,086 NZD
Retailer 3$1,230 NZD
Retailer 6$1,243 NZD
Retailer 9$2,039 NZD
Retailer 5$2,934 NZD
Retailer 7$4,230 NZD
Retailer 11$4,399 NZD
Do Amore Diamonds$4,745 NZD

36 data points across 12 retailers

15 retailers$746 NZD to $4,745 NZD

Retailer 1
-
$563 NZD
$317 USD
Price last confirmed 22 days ago
Retailer 2
-
$652 NZD
$367 USD
View
Price last confirmed 19 days ago
A
Retailer 3
-
$746 NZD
$420 USD
View
Final sale: no returns
A
Retailer 4
-
$754 NZD
£334 GBP
View
A
Retailer 5
-
$947 NZD
$533 USD
View
A
Retailer 6
-
$978 NZD
$550 USD
View
A
Retailer 7
-
$1,086 NZD
$611 USD
View
A
Retailer 8
-
$1,230 NZD
$692 USD
View
A
Retailer 9
-
$1,243 NZD
€666 EUR
View
B+
Retailer 10
-
$2,039 NZD
$1,147 USD
View
Retailer 11
-
$2,478 NZD
$1,394 USD
View
Price last confirmed 23 days ago
B+
Retailer 12
-
$2,934 NZD
£1,300 GBP
View
B
Retailer 13
-
$4,230 NZD
$2,380 USD
View
Retailer 14
-
$4,399 NZD
$2,475 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Do Amore Diamonds
27-43D2CC484 · Nov 1
$4,745 NZD
$2,670 USD
View
14 more retailers have this diamond
Prices start from $746 NZDSave up to $3,999 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 Radiant
$746 NZD