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Round|Lab Grown|IGI

1.27ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG825639468

Shape and cutting style on the report: Round brilliant

Certificate IGI LG825639468

Diamond specifications and retailer prices

From £255 GBP
$342 USD
As of October 29, 2026
Save £1,864 GBP (88%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £2,120 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.27ct lab-grown round diamond

This 1.27ct 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 LG825639468 or 825639468. Listed at 19 retailers as of October 29, 2026, with prices from £255 to £2,120, a £1,864 spread on the same certified stone. Brilliant Earth lists it at £2,120. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.27
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825639468
Dimensions6.89 × 6.93 × 4.30 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
6.89 mm6.93 mm1.27 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825639468
Side View
Table 58.0%Crown 35.9°Girdle: MediumPavilion 41°Culet: NoneDepth 62.2%

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: Oct 29
Current: £929 GBP|Low: £255 GBP|High: £1,315 GBP|Avg: £603 GBP|-4.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
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Retailer 10
Retailer 11
Retailer 12
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Retailer 18
October 30, 2026
Retailer 14£255 GBP
Retailer 18£285 GBP
Retailer 11£296 GBP
Retailer 6£317 GBP
Retailer 7£319 GBP
Retailer 9£353 GBP
Retailer 2£425 GBP
Retailer 4£429 GBP
Retailer 16£501 GBP
Retailer 12£504 GBP
Retailer 15£505 GBP
Retailer 17£545 GBP
Retailer 13£567 GBP
Retailer 1£929 GBP
Retailer 3£1,011 GBP
Retailer 5£1,019 GBP
Retailer 10£1,172 GBP
Retailer 8£1,246 GBP

16 data points across 18 retailers

19 retailers£255 GBP to £2,120 GBP

A+
Cheapest Retailer
-
£255 GBP
$342 USD
A
Retailer 2
-
£285 GBP
$382 USD
View
Final sale: no returns
A
Retailer 3
-
£296 GBP
$397 USD
View
A
Retailer 4
-
£317 GBP
$425 USD
View
A
Retailer 5
-
£319 GBP
$427 USD
View
A
Retailer 6
-
£353 GBP
HK$3,700 HKD
View
A
Retailer 7
-
£425 GBP
$570 USD
View
A
Retailer 8
-
£429 GBP
$575 USD
View
A
Retailer 9
-
£501 GBP
$671 USD
View
A
Retailer 10
-
£504 GBP
View
A
Retailer 11
-
£505 GBP
€644 EUR
View
A
Retailer 12
-
£545 GBP
ZAR 11,787 ZAR
View
A
Retailer 13
-
£567 GBP
View
B+
Retailer 14
-
£929 GBP
$1,245 USD
View
B+
Retailer 15
-
£1,011 GBP
SGD 1,831 SGD
View
B+
Retailer 16
-
£1,019 GBP
$1,365 USD
View
Retailer 17
-
£1,172 GBP
$1,570 USD
View
Price last confirmed 9 days ago
B+
Retailer 18
-
£1,246 GBP
View
Most Expensive
B
Brilliant Earth
21294548A · Oct 29
£2,120 GBP
$2,840 USD
View
18 more retailers have this diamond
Prices start from £255 GBPSave up to £1,864 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+
1.27ct Round
£255 GBP