CaratHunter
Plans
Radiant|Lab Grown|IGI

0.89ct F SI1 Radiant Lab Grown Diamond

ID • F/SI1 • IGI LG574346455

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG574346455

Diamond specifications and retailer prices

From £115 GBP
$154 USD
As of November 2, 2026
Save £990 GBP (90%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,105 GBP at Do Amore Diamonds · As of November 2, 2026
View at Do Amore Diamonds

About this 0.89ct lab-grown radiant diamond

This 0.89ct lab-grown radiant sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG574346455 or 574346455. Listed at 16 retailers as of November 2, 2026, with prices from £115 to £1,105, a £990 spread on the same certified stone. Do Amore Diamonds lists it at £1,105. 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

0.89
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle35.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG574346455
Dimensions6.75 × 4.79 × 3.20 mm
L/W Ratio1.41
Culet sizePointed
Top View
6.75 mm4.79 mm0.89 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG574346455
Side View
Table 69.0%Crown 32.3°Girdle: STK-THKPavilion 35.8°Culet: NoneDepth 66.8%

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 2
Current: £281 GBP|Low: £110 GBP|High: £747 GBP|Avg: £335 GBP|+4.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 9£115 GBP
Retailer 12£129 GBP
Retailer 10£143 GBP
Retailer 7£172 GBP
Retailer 11£262 GBP
Retailer 1£281 GBP
Retailer 2£304 GBP
Retailer 3£327 GBP
Retailer 6£410 GBP
Retailer 8£485 GBP
Retailer 4£561 GBP
Retailer 5£737 GBP

44 data points across 12 retailers

16 retailers£115 GBP to £1,105 GBP

A
Cheapest Retailer
-
£115 GBP
$154 USD
A
Retailer 2
-
£129 GBP
$173 USD
View
Final sale: no returns
A
Retailer 3
-
£134 GBP
$179 USD
View
Retailer 4
-
£143 GBP
$192 USD
View
Price last confirmed 8 days ago
A
Retailer 5
-
£143 GBP
$192 USD
View
A
Retailer 6
-
£163 GBP
$218 USD
View
A
Retailer 7
-
£172 GBP
$230 USD
View
B+
Retailer 8
-
£262 GBP
$351 USD
View
B+
Retailer 9
-
£281 GBP
View
B+
Retailer 10
-
£304 GBP
$407 USD
View
B+
Retailer 11
-
£410 GBP
$550 USD
View
B
Retailer 12
-
£485 GBP
$650 USD
View
B
Retailer 13
-
£508 GBP
$680 USD
View
B
Retailer 14
-
£637 GBP
$854 USD
View
B
Retailer 15
-
£737 GBP
View
Most Expensive
B
Do Amore Diamonds
27-9711123FE · Nov 2
£1,105 GBP
$1,480 USD
View
15 more retailers have this diamond
Prices start from £115 GBPSave up to £990 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
0.89ct Radiant
£115 GBP