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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 $537 SGD
$420 USD
As of November 1, 2026
Save $2,878 SGD (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,415 SGD 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 $537 to $3,415, a $2,878 spread on the same certified stone. Do Amore Diamonds lists it at $3,415. 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

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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 1
Current: $3,415 SGD|Low: $537 SGD|High: $4,348 SGD|Avg: $1,665 SGD|-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$537 SGD
Retailer 2$543 SGD
Retailer 8$682 SGD
Retailer 12$703 SGD
Retailer 10$781 SGD
Retailer 3$885 SGD
Retailer 6$894 SGD
Retailer 9$1,467 SGD
Retailer 5$2,111 SGD
Retailer 7$3,044 SGD
Retailer 11$3,165 SGD
Do Amore Diamonds$3,415 SGD

35 data points across 12 retailers

15 retailers$537 SGD to $3,415 SGD

Retailer 1
-
$405 SGD
$317 USD
Price last confirmed 22 days ago
Retailer 2
-
$469 SGD
$367 USD
View
Price last confirmed 20 days ago
A
Retailer 3
-
$537 SGD
$420 USD
View
Final sale: no returns
A
Retailer 4
-
$543 SGD
£334 GBP
View
A
Retailer 5
-
$682 SGD
$533 USD
View
A
Retailer 6
-
$703 SGD
$550 USD
View
A
Retailer 7
-
$781 SGD
$611 USD
View
A
Retailer 8
-
$885 SGD
$692 USD
View
A
Retailer 9
-
$894 SGD
€666 EUR
View
B+
Retailer 10
-
$1,467 SGD
$1,147 USD
View
Retailer 11
-
$1,783 SGD
$1,394 USD
View
Price last confirmed 23 days ago
B+
Retailer 12
-
$2,111 SGD
£1,300 GBP
View
B
Retailer 13
-
$3,044 SGD
$2,380 USD
View
Retailer 14
-
$3,165 SGD
$2,475 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Do Amore Diamonds
27-43D2CC484 · Nov 1
$3,415 SGD
$2,670 USD
View
14 more retailers have this diamond
Prices start from $537 SGDSave up to $2,878 SGD

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
$537 SGD