Radiant|Natural|GIA

1.50ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 7551892979

Certificate GIA 7551892979

Diamond specifications and retailer prices

From £6,060 GBP
$8,070 USD
As of October 28, 2026
Save £4,622 GBP (43%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £10,682 GBP at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.5ct natural radiant diamond

This 1.5ct natural radiant sits in the one-and-a-half to two carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 7551892979. Listed at 11 retailers as of October 27, 2026, with prices from £6,060 to £10,682, a £4,622 spread on the same certified stone. NZ Jewellers lists it at £10,682. 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

1.50
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7551892979
Dimensions7.99 × 5.68 × 3.76 mm
L/W Ratio1.41
Girdle conditionPolished
Top View
7.99 mm5.68 mm1.50 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7551892979
Side View
Table 69.0%CrownGirdle: THK-VTKPavilionCuletDepth 66.2%

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 28
Current: £7,053 GBP|Low: £5,875 GBP|High: £10,130 GBP|Avg: £7,477 GBP|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 7£6,060 GBP
Retailer 8£6,317 GBP
Retailer 4£6,408 GBP
Retailer 1£7,053 GBP
Retailer 5£7,730 GBP
Retailer 6£8,011 GBP
Retailer 3£8,041 GBP
Retailer 2£10,063 GBP

39 data points across 8 retailers

11 retailers£6,060 GBP to £10,682 GBP

B+
Cheapest Retailer
-
£6,060 GBP
$8,070 USD
B+
Retailer 2
-
£6,317 GBP
CA$11,683 CAD
View
B+
Retailer 3
-
£6,408 GBP
$8,534 USD
View
Final sale: no returns
B+
Retailer 4
-
£6,943 GBP
$9,246 USD
View
B+
Retailer 5
-
£7,050 GBP
$9,388 USD
View
B+
Retailer 6
-
£7,053 GBP
View
B+
Retailer 7
-
£7,730 GBP
$10,294 USD
View
B
Retailer 8
-
£8,011 GBP
$10,668 USD
View
B+
Retailer 9
-
£8,041 GBP
€10,198 EUR
View
B
Retailer 10
-
£10,063 GBP
View
Most Expensive
B
NZ Jewellers
aec22f1a-bd22-49de-8010-c898d40344e1 · Oct 27
£10,682 GBP
$14,225 USD
View
10 more retailers have this diamond
Prices start from £6,060 GBPSave up to £4,622 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+
1.50ct Radiant
£6,060 GBP