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Radiant|Natural|GIA

1.50ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 2536435116

Certificate GIA 2536435116

Diamond specifications and retailer prices

From £6,675 GBP
As of November 4, 2026
Save £4,188 GBP (39%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £10,864 GBP at NZ Jewellers · As of November 5, 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 D 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 2536435116. Listed at 12 retailers as of November 4, 2026, with prices from £6,675 to £10,864, a £4,188 spread on the same certified stone. NZ Jewellers lists it at £10,864. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2536435116
Dimensions7.50 × 5.76 × 4.01 mm
L/W Ratio1.30
Top View
7.50 mm5.76 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 2536435116
Side View
Table 68.0%CrownGirdle: Very ThickPavilionCulet: NoneDepth 69.6%

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: Nov 4
Current: £8,166 GBP|Low: £5,068 GBP|High: £10,302 GBP|Avg: £7,534 GBP|+2.9%
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
November 6, 2026
Retailer 5£5,068 GBP
Retailer 8£5,351 GBP
Retailer 6£6,460 GBP
Retailer 3£6,675 GBP
Retailer 2£6,948 GBP
Retailer 15£7,124 GBP
Retailer 11£7,160 GBP
Retailer 12£7,195 GBP
Retailer 16£7,195 GBP
Retailer 13£7,914 GBP
Retailer 1£8,166 GBP
Retailer 4£8,250 GBP
Retailer 7£8,700 GBP
Retailer 14£8,994 GBP
Retailer 9£9,509 GBP
Retailer 10£10,152 GBP

31 data points across 16 retailers

12 retailers£6,675 GBP to £10,864 GBP

B+
Cheapest Retailer
-
£6,675 GBP
B+
Retailer 2
-
£6,948 GBP
View
B+
Retailer 3
-
£7,124 GBP
View
Retailer 4
-
£7,160 GBP
View
Price last confirmed 15 days ago
B
Retailer 5
-
£7,195 GBP
View
Final sale: no returns
B+
Retailer 6
-
£7,795 GBP
View
B+
Retailer 7
-
£7,914 GBP
View
B+
Retailer 8
-
£8,166 GBP
View
B
Retailer 9
-
£8,994 GBP
View
B
Retailer 10
-
£9,509 GBP
View
B
Retailer 11
-
£10,152 GBP
View
Most Expensive
B
NZ Jewellers
0f46ccc3-79b0-4e9c-b84a-b0ae089210fa · Nov 5
£10,864 GBP
$14,541 USD
View
11 more retailers have this diamond
Prices start from £6,675 GBPSave up to £4,188 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
£6,675 GBP