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Round|Lab Grown|IGI

1.27ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG816615388

Shape and cutting style on the report: Round brilliant

Certificate IGI LG816615388

Diamond specifications and retailer prices

From £202 GBP
$270 USD
As of October 29, 2026
Save £1,194 GBP (86%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £1,396 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 LG816615388 or 816615388. Listed at 19 retailers as of October 29, 2026, with prices from £202 to £1,396, a £1,194 spread on the same certified stone. Brilliant Earth lists it at £1,396. 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 angle33.3°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816615388
Dimensions7.08 × 7.05 × 4.18 mm
L/W Ratio1.00
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
7.08 mm7.05 mm1.27 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816615388
Side View
Table 59.0%Crown 33.3°Girdle: MediumPavilion 40.4°Culet: NoneDepth 59.2%

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: Oct 29
Current: £1,396 GBP|Low: £199 GBP|High: £1,627 GBP|Avg: £588 GBP|-14.2%
Brilliant Earth
Retailer 2
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Retailer 19
October 30, 2026
Retailer 8£202 GBP
Retailer 18£225 GBP
Retailer 4£234 GBP
Retailer 5£249 GBP
Retailer 10£249 GBP
Retailer 14£369 GBP
Retailer 12£414 GBP
Retailer 6£414 GBP
Retailer 13£429 GBP
Retailer 2£436 GBP
Retailer 7£581 GBP
Retailer 3£766 GBP
Retailer 11£802 GBP
Retailer 17£807 GBP
Retailer 9£840 GBP
Retailer 16£888 GBP
Retailer 15£1,001 GBP
Retailer 19£1,179 GBP
Brilliant Earth£1,396 GBP

34 data points across 19 retailers

19 retailers£202 GBP to £1,396 GBP

A
Cheapest Retailer
-
£202 GBP
$270 USD
A
Retailer 2
-
£225 GBP
$301 USD
View
Final sale: no returns
A
Retailer 3
-
£234 GBP
$313 USD
View
A
Retailer 4
-
£249 GBP
$334 USD
View
A
Retailer 5
-
£249 GBP
$334 USD
View
A
Retailer 6
-
£369 GBP
$495 USD
View
A
Retailer 7
-
£414 GBP
€528 EUR
View
A
Retailer 8
-
£414 GBP
$555 USD
View
A
Retailer 9
-
£429 GBP
ZAR 9,279 ZAR
View
A
Retailer 10
-
£436 GBP
View
A
Retailer 11
-
£581 GBP
$778 USD
View
B+
Retailer 12
-
£766 GBP
$1,027 USD
View
B+
Retailer 13
-
£802 GBP
$1,075 USD
View
B+
Retailer 14
-
£807 GBP
SGD 1,461 SGD
View
B+
Retailer 15
-
£840 GBP
$1,126 USD
View
B+
Retailer 16
-
£888 GBP
$1,190 USD
View
B+
Retailer 17
-
£1,001 GBP
View
Retailer 18
-
£1,179 GBP
$1,580 USD
View
Price last confirmed 9 days ago
Most Expensive
B
Brilliant Earth
21421956A · Oct 29
£1,396 GBP
$1,870 USD
View
18 more retailers have this diamond
Prices start from £202 GBPSave up to £1,194 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
£202 GBP