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Round|Lab Grown|IGI

1.28ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG801695017

Shape and cutting style on the report: Round brilliant

Certificate IGI LG801695017

Diamond specifications and retailer prices

From £222 GBP
$296 USD
As of October 29, 2026
Save £1,753 GBP (89%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,975 GBP at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round 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 LG801695017 or 801695017. Listed at 15 retailers as of October 29, 2026, with prices from £222 to £1,975, a £1,753 spread on the same certified stone. Do Amore Diamonds lists it at £1,975. 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 angle34.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG801695017
Dimensions6.98 × 6.92 × 4.27 mm
L/W Ratio1.01
Girdle conditionFaceted
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
6.98 mm6.92 mm1.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG801695017
Side View
Table 58.0%Crown 34.8°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.4%

Caratlytics Score

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A+
Exceptional
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: Oct 29
Current: £1,975 GBP|Low: £222 GBP|High: £2,223 GBP|Avg: £935 GBP|-8.7%
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
Retailer 13
Retailer 14
Retailer 15
October 30, 2026
Retailer 12£222 GBP
Retailer 11£258 GBP
Retailer 10£451 GBP
Retailer 13£452 GBP
Retailer 5£479 GBP
Retailer 2£484 GBP
Retailer 9£516 GBP
Retailer 7£580 GBP
Retailer 8£614 GBP
Retailer 14£846 GBP
Retailer 4£978 GBP
Retailer 6£1,190 GBP
Retailer 15£1,220 GBP
Retailer 3£1,404 GBP
Do Amore Diamonds£1,975 GBP

35 data points across 15 retailers

15 retailers£222 GBP to £1,975 GBP

A+
Cheapest Retailer
-
£222 GBP
$296 USD
A
Retailer 2
-
£258 GBP
$343 USD
View
A
Retailer 3
-
£451 GBP
$600 USD
View
A
Retailer 4
-
£452 GBP
$602 USD
View
A
Retailer 5
-
£479 GBP
$638 USD
View
A
Retailer 6
-
£484 GBP
View
A
Retailer 7
-
£516 GBP
€654 EUR
View
A
Retailer 8
-
£553 GBP
$736 USD
View
A
Retailer 9
-
£580 GBP
A$1,188 AUD
View
B+
Retailer 10
-
£846 GBP
$1,127 USD
View
B+
Retailer 11
-
£978 GBP
$1,302 USD
View
Retailer 12
-
£1,190 GBP
$1,585 USD
View
Price last confirmed 8 days ago
B+
Retailer 13
-
£1,220 GBP
View
B
Retailer 14
-
£1,404 GBP
$1,870 USD
View
Most Expensive
B
Do Amore Diamonds
27-3D7DF8949 · Oct 30
£1,975 GBP
$2,630 USD
View
14 more retailers have this diamond
Prices start from £222 GBPSave up to £1,753 GBP

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 Round
£222 GBP