Heart|Lab Grown|IGI

1.27ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG836620005

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG836620005

Diamond specifications and retailer prices

From £264 GBP
$354 USD
As of October 30, 2026
Save £1,721 GBP (87%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,985 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.27ct lab-grown heart diamond

This 1.27ct lab-grown heart 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 LG836620005 or 836620005. Listed at 18 retailers as of October 30, 2026, with prices from £264 to £1,985, a £1,721 spread on the same certified stone. Brilliant Earth lists it at £1,985. 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°
Pavilion angle36.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG836620005
Dimensions7.00 × 7.45 × 4.13 mm
L/W Ratio1.06
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
7.00 mm7.45 mm1.27 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG836620005
Side View
Table 60.0%Crown 35°Girdle: STK-THKPavilion 36.6°Culet: NoneDepth 55.4%

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: Oct 30
Current: £1,985 GBP|Low: £264 GBP|High: £2,575 GBP|Avg: £838 GBP|-22.9%
Brilliant Earth
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
Retailer 18
November 2, 2026
Retailer 7£264 GBP
Retailer 18£307 GBP
Retailer 4£314 GBP
Retailer 15£328 GBP
Retailer 17£328 GBP
Retailer 14£440 GBP
Retailer 13£519 GBP
Retailer 8£525 GBP
Retailer 2£565 GBP
Retailer 11£590 GBP
Retailer 3£651 GBP
Retailer 9£817 GBP
Retailer 16£1,054 GBP
Retailer 6£1,085 GBP
Retailer 10£1,185 GBP
Retailer 12£1,281 GBP
Retailer 5£1,364 GBP
Brilliant Earth£1,985 GBP

36 data points across 18 retailers

18 retailers£264 GBP to £1,985 GBP

A
Cheapest Retailer
-
£264 GBP
$354 USD
A
Retailer 2
-
£307 GBP
$411 USD
View
A
Retailer 3
-
£314 GBP
$421 USD
View
Final sale: no returns
A
Retailer 4
-
£328 GBP
$439 USD
View
Retailer 5
-
£328 GBP
$439 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
£440 GBP
$590 USD
View
A
Retailer 7
-
£519 GBP
€662 EUR
View
A
Retailer 8
-
£525 GBP
$704 USD
View
A
Retailer 9
-
£565 GBP
ZAR 12,239 ZAR
View
A
Retailer 10
-
£590 GBP
View
B+
Retailer 11
-
£651 GBP
$872 USD
View
B+
Retailer 12
-
£817 GBP
$1,095 USD
View
B+
Retailer 13
-
£1,054 GBP
$1,412 USD
View
B+
Retailer 14
-
£1,085 GBP
$1,453 USD
View
B+
Retailer 15
-
£1,185 GBP
SGD 2,145 SGD
View
B+
Retailer 16
-
£1,281 GBP
View
B
Retailer 17
-
£1,364 GBP
$1,828 USD
View
Most Expensive
B
Brilliant Earth
21589719A · Oct 31
£1,985 GBP
$2,660 USD
View
17 more retailers have this diamond
Prices start from £264 GBPSave up to £1,721 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 Heart
£264 GBP