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1.37ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • GIA 6505271595

Certificate GIA 6505271595

Diamond specifications and retailer prices

From £177 GBP
$237 USD
As of October 29, 2026
Save £1,226 GBP (87%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £1,403 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6505271595. Listed at 17 retailers as of October 29, 2026, with prices from £177 to £1,403, a £1,226 spread on the same certified stone. Do Amore Diamonds lists it at £1,403. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.37
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle40.8°
OriginLab Grown
Grading LabGIA
CertificateGIA 6505271595
Dimensions7.15 × 7.13 × 4.39 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Top View
7.15 mm7.13 mm1.37 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6505271595
Side View
Table 57.0%Crown 34.5°Girdle: MediumPavilion 40.8°Culet: NoneDepth 61.5%

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 29
Current: £1,403 GBP|Low: £128 GBP|High: £1,840 GBP|Avg: £674 GBP|+13.9%
Do Amore Diamonds
Retailer 2
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October 30, 2026
Retailer 20£177 GBP
Retailer 7£181 GBP
Retailer 24£181 GBP
Retailer 2£205 GBP
Retailer 8£270 GBP
Retailer 4£310 GBP
Retailer 3£388 GBP
Retailer 18£418 GBP
Retailer 6£425 GBP
Retailer 12£468 GBP
Retailer 13£474 GBP
Retailer 10£584 GBP
Retailer 22£585 GBP
Retailer 23£590 GBP
Retailer 5£644 GBP
Retailer 9£793 GBP
Retailer 21£807 GBP
Retailer 15£851 GBP
Retailer 17£851 GBP
Retailer 19£905 GBP
Retailer 14£1,149 GBP
Retailer 11£1,359 GBP
Do Amore Diamonds£1,403 GBP
Retailer 16£1,840 GBP

12 data points across 24 retailers

17 retailers£177 GBP to £1,403 GBP

A
Cheapest Retailer
-
£177 GBP
$237 USD
A
Retailer 2
-
£181 GBP
$243 USD
View
A
Retailer 3
-
£181 GBP
$243 USD
View
A
Retailer 4
-
£205 GBP
$275 USD
View
B+
Retailer 5
-
£270 GBP
$362 USD
View
A
Retailer 6
-
£310 GBP
$415 USD
View
B+
Retailer 7
-
£388 GBP
$520 USD
View
B+
Retailer 8
-
£418 GBP
View
B+
Retailer 9
-
£425 GBP
$570 USD
View
B+
Retailer 10
-
£474 GBP
View
B
Retailer 11
-
£585 GBP
$784 USD
View
B+
Retailer 12
-
£590 GBP
$790 USD
View
B
Retailer 13
-
£644 GBP
$863 USD
View
B
Retailer 14
-
£793 GBP
$1,063 USD
View
B
Retailer 15
-
£807 GBP
View
B
Retailer 16
-
£905 GBP
$1,213 USD
View
Most Expensive
B
Do Amore Diamonds
27-A1569C252 · Oct 29
£1,403 GBP
$1,880 USD
View
16 more retailers have this diamond
Prices start from £177 GBPSave up to £1,226 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
£177 GBP