CaratHunter
Plans
Round|Lab Grown|IGI

1.24ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG794627370

Shape and cutting style on the report: Round brilliant

Certificate IGI LG794627370

Diamond specifications and retailer prices

From £131 GBP
As of November 5, 2026
Save £698 GBP (84%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £829 GBP at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.24ct lab-grown round diamond

This 1.24ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG794627370 or 794627370. Listed at 20 retailers as of November 5, 2026, with prices from £131 to £829, a £698 spread on the same certified stone. Reve Diamonds lists it at £829. 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

1.24
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794627370
Dimensions6.95 × 6.92 × 4.20 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
6.95 mm6.92 mm1.24 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794627370
Side View
Table 59.0%Crown 33.6°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.5%

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: Nov 5
Current: £309 GBP|Low: £129 GBP|High: £829 GBP|Avg: £354 GBP|+9.5%
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
Retailer 15
Retailer 16
Retailer 17
Reve Diamonds
November 6, 2026
Retailer 7£131 GBP
Retailer 2£146 GBP
Retailer 14£152 GBP
Retailer 3£162 GBP
Retailer 5£162 GBP
Retailer 10£286 GBP
Retailer 4£287 GBP
Retailer 15£294 GBP
Retailer 1£309 GBP
Retailer 17£347 GBP
Retailer 16£357 GBP
Retailer 9£361 GBP
Retailer 11£438 GBP
Retailer 8£520 GBP
Retailer 13£549 GBP
Retailer 6£560 GBP
Retailer 12£753 GBP
Reve Diamonds£829 GBP

46 data points across 18 retailers

20 retailers£131 GBP to £829 GBP

A
Cheapest Retailer
-
£131 GBP
A
Retailer 2
-
£146 GBP
View
Final sale: no returns
A
Retailer 3
-
£152 GBP
View
A
Retailer 4
-
£162 GBP
View
Retailer 5
-
£162 GBP
View
Price last confirmed 12 days ago
A
Retailer 6
-
£286 GBP
View
A
Retailer 7
-
£287 GBP
View
B+
Retailer 8
-
£294 GBP
View
B+
Retailer 9
-
£309 GBP
View
B+
Retailer 10
-
£347 GBP
View
B+
Retailer 11
-
£357 GBP
View
B+
Retailer 12
-
£361 GBP
View
B+
Retailer 13
-
£432 GBP
View
B+
Retailer 14
-
£438 GBP
View
B+
Retailer 15
-
£438 GBP
View
B
Retailer 16
-
£520 GBP
View
B
Retailer 17
-
£549 GBP
View
B
Retailer 18
-
£560 GBP
View
B
Retailer 19
-
£753 GBP
View
Most Expensive
B
Reve Diamonds
D20FB3292 · Nov 6
£829 GBP
$1,115 USD
View
19 more retailers have this diamond
Prices start from £131 GBPSave up to £698 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
1.24ct Round
£131 GBP