CaratHunter
Plans
Princess|Lab Grown|IGI

1.00ct D SI1 Princess Lab Grown Diamond

GD • D/SI1 • IGI LG846656678

Shape and cutting style on the report: Princess cut

Certificate IGI LG846656678

Diamond specifications and retailer prices

From £130 GBP
$173 USD
As of October 24, 2026
Save £621 GBP (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £751 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1ct lab-grown princess diamond

This 1ct lab-grown princess sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG846656678 or 846656678. Listed at 14 retailers as of October 24, 2026, with prices from £130 to £751, a £621 spread on the same certified stone. Brilliant Earth lists it at £751. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38.8°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG846656678
Dimensions5.27 × 5.14 × 3.91 mm
L/W Ratio1.03
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
5.27 mm5.14 mm1.00 ctD / SI1
OriginLab Grown
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG846656678
Side View
Table 72.0%Crown 38.8°Girdle: STK-THKPavilion 39.5°Culet: NoneDepth 76.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 24
Current: £237 GBP|Low: £125 GBP|High: £649 GBP|Avg: £291 GBP
Retailer 1
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
October 29, 2026
Retailer 4£125 GBP
Retailer 3£130 GBP
Retailer 6£154 GBP
Retailer 9£166 GBP
Retailer 10£232 GBP
Retailer 1£237 GBP
Retailer 12£255 GBP
Retailer 11£298 GBP
Retailer 2£321 GBP
Retailer 5£382 GBP
Retailer 13£445 GBP
Retailer 7£447 GBP
Retailer 8£471 GBP
Retailer 14£649 GBP

5 data points across 14 retailers

14 retailers£130 GBP to £751 GBP

B+
Cheapest Retailer
-
£130 GBP
$173 USD
B+
Retailer 2
-
£154 GBP
HK$1,600 HKD
View
B+
Retailer 3
-
£166 GBP
View
B+
Retailer 4
-
£232 GBP
View
B+
Retailer 5
-
£237 GBP
€300 EUR
View
B+
Retailer 6
-
£255 GBP
$339 USD
View
B
Retailer 7
-
£298 GBP
View
B
Retailer 8
-
£321 GBP
$428 USD
View
B
Retailer 9
-
£382 GBP
SGD 687 SGD
View
B
Retailer 10
-
£445 GBP
$593 USD
View
B
Retailer 11
-
£447 GBP
$595 USD
View
B
Retailer 12
-
£471 GBP
$627 USD
View
C
Retailer 13
-
£649 GBP
View
Most Expensive
C
Brilliant Earth
22251280A · Oct 29
£751 GBP
$1,000 USD
View
13 more retailers have this diamond
Prices start from £130 GBPSave up to £621 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.

B+
1.00ct Princess
£130 GBP