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1.56ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG483116515

Shape and cutting style on the report: Round brilliant

Certificate IGI LG483116515

Diamond specifications and retailer prices

From £252 GBP
$337 USD
As of October 29, 2026
Save £1,980 GBP (89%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,232 GBP at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.56ct lab-grown round diamond

This 1.56ct lab-grown round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG483116515 or 483116515. Listed at 18 retailers as of October 29, 2026, with prices from £252 to £2,232, a £1,980 spread on the same certified stone. Do Amore Diamonds lists it at £2,232. 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

1.56
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG483116515
Dimensions7.35 × 7.43 × 4.62 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.35 mm7.43 mm1.56 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG483116515
Side View
Table 57.5%Crown 35.5°Girdle: MediumPavilion 41.2°Culet: NoneDepth 62.4%

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: £2,232 GBP|Low: £252 GBP|High: £2,232 GBP|Avg: £750 GBP
Do Amore Diamonds
Retailer 2
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Retailer 18
October 30, 2026
Retailer 18£252 GBP
Retailer 15£292 GBP
Retailer 11£307 GBP
Retailer 6£312 GBP
Retailer 14£312 GBP
Retailer 3£369 GBP
Retailer 7£425 GBP
Retailer 9£538 GBP
Retailer 12£558 GBP
Retailer 16£560 GBP
Retailer 2£590 GBP
Retailer 10£614 GBP
Retailer 17£915 GBP
Retailer 8£940 GBP
Retailer 5£1,108 GBP
Retailer 4£1,224 GBP
Retailer 13£1,354 GBP
Do Amore Diamonds£2,232 GBP

14 data points across 18 retailers

18 retailers£252 GBP to £2,232 GBP

A
Cheapest Retailer
-
£252 GBP
$337 USD
A
Retailer 2
-
£292 GBP
$391 USD
View
B+
Retailer 3
-
£307 GBP
$412 USD
View
A
Retailer 4
-
£312 GBP
$418 USD
View
A
Retailer 5
-
£312 GBP
$418 USD
View
A
Retailer 6
-
£369 GBP
$494 USD
View
A
Retailer 7
-
£425 GBP
$570 USD
View
A
Retailer 8
-
£538 GBP
$721 USD
View
A
Retailer 9
-
£558 GBP
View
A
Retailer 10
-
£560 GBP
$751 USD
View
A
Retailer 11
-
£590 GBP
$790 USD
View
A
Retailer 12
-
£614 GBP
$823 USD
View
A
Retailer 13
-
£915 GBP
$1,226 USD
View
A
Retailer 14
-
£940 GBP
$1,260 USD
View
B+
Retailer 15
-
£1,108 GBP
$1,484 USD
View
B+
Retailer 16
-
£1,224 GBP
$1,640 USD
View
B+
Retailer 17
-
£1,354 GBP
View
Most Expensive
B
Do Amore Diamonds
27-276B1001C · Oct 31
£2,232 GBP
$2,990 USD
View
17 more retailers have this diamond
Prices start from £252 GBPSave up to £1,980 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
1.56ct Round
£252 GBP