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Round|Lab Grown|IGI

1.37ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG827608682

Shape and cutting style on the report: Round brilliant

Certificate IGI LG827608682

Diamond specifications and retailer prices

From £216 GBP
As of November 4, 2026
Save £959 GBP (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £1,174 GBP at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 1.37ct lab-grown round diamond

This 1.37ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded G colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG827608682 or 827608682. Listed at 21 retailers as of November 1, 2026, with prices from £216 to £1,174, a £959 spread on the same certified stone. Rare Carat lists it at £1,174. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.37
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle41.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG827608682
Dimensions7.18 × 7.22 × 4.38 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 Faint Blue
Top View
7.18 mm7.22 mm1.37 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG827608682
Side View
Table 58.0%Crown 32.9°Girdle: MediumPavilion 41.1°Culet: NoneDepth 60.9%

Caratlytics Score

How it works →
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 4
Current: £1,174 GBP|Low: £216 GBP|High: £1,193 GBP|Avg: £597 GBP|-1.6%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 5, 2026
Retailer 13£216 GBP
Retailer 4£239 GBP
Retailer 12£330 GBP
Retailer 10£359 GBP
Retailer 7£399 GBP
Retailer 9£413 GBP
Retailer 2£452 GBP
Retailer 8£587 GBP
Retailer 11£736 GBP
Retailer 5£773 GBP
Retailer 6£956 GBP
Retailer 3£1,027 GBP
Rare Carat£1,174 GBP

41 data points across 13 retailers

21 retailers£216 GBP to £1,174 GBP

Retailer 1
-
£185 GBP
Price last confirmed 28 days ago
Retailer 2
-
£193 GBP
View
Price last confirmed 44 days ago
A
Retailer 3
-
£216 GBP
View
Final sale: no returns
Retailer 4
-
£224 GBP
View
Price last confirmed 44 days ago
Retailer 5
-
£236 GBP
View
Price last confirmed 44 days ago
Retailer 6
-
£239 GBP
View
Price last confirmed 28 days ago
Retailer 7
-
£239 GBP
View
Price last confirmed 34 days ago
A
Retailer 8
-
£330 GBP
View
A
Retailer 9
-
£359 GBP
View
A
Retailer 10
-
£399 GBP
View
A
Retailer 11
-
£413 GBP
View
A
Retailer 12
-
£452 GBP
View
B+
Retailer 13
-
£587 GBP
View
B+
Retailer 14
-
£736 GBP
View
Retailer 15
-
£770 GBP
View
Price last confirmed 36 days ago
Retailer 16
-
£770 GBP
View
Price last confirmed 45 days ago
B+
Retailer 17
-
£773 GBP
View
B
Retailer 18
-
£807 GBP
View
B
Retailer 19
-
£956 GBP
View
B
Retailer 20
-
£1,027 GBP
View
Most Expensive
B
Rare Carat
VK8804_l_827608682 · Nov 1
£1,174 GBP
$1,585 USD
View
20 more retailers have this diamond
Prices start from £216 GBPSave up to £959 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
1.37ct Round
£216 GBP