Round|Natural|GIA

1.53ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 7531777542

Certificate GIA 7531777542

Diamond specifications and retailer prices

From £6,550 GBP
As of November 5, 2026
Save £3,007 GBP (31%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £10,918 GBP at NZ Jewellers · As of October 20, 2026
View at NZ Jewellers

About this 1.53ct natural round diamond

This 1.53ct natural round 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 and certified by GIA 7531777542. Listed at 16 retailers as of November 5, 2026, with a 46% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.53
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7531777542
Dimensions7.41 × 7.45 × 4.53 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
7.41 mm7.45 mm1.53 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7531777542
Side View
Table 58.0%Crown 34.5°GirdlePavilion 40.8°Culet: NoneDepth 61.0%

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 5
Current: £10,918 GBP|Low: £6,005 GBP|High: £10,918 GBP|Avg: £7,981 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 6, 2026
Retailer 11£6,550 GBP
Retailer 5£6,551 GBP
Retailer 2£7,044 GBP
Retailer 13£7,097 GBP
Retailer 9£7,191 GBP
Retailer 12£7,206 GBP
Retailer 4£8,188 GBP
Retailer 8£8,189 GBP
Retailer 3£8,488 GBP
Retailer 6£8,489 GBP
Retailer 7£9,557 GBP
Retailer 10£10,286 GBP
NZ Jewellers£10,918 GBP

33 data points across 13 retailers

16 retailers£6,550 GBP to £9,557 GBP

Retailer 1
-
£6,133 GBP
Price last confirmed 14 days ago
B+
Retailer 2
-
£6,550 GBP
View
Final sale: no returns
Retailer 3
-
£6,551 GBP
View
Price last confirmed 21 days ago
B+
Retailer 4
-
£7,044 GBP
View
Retailer 5
-
£7,097 GBP
View
Price last confirmed 15 days ago
Retailer 6
-
£7,191 GBP
View
Price last confirmed 15 days ago
Retailer 7
-
£7,206 GBP
View
Price last confirmed 15 days ago
B
Retailer 8
-
£7,822 GBP
View
Retailer 9
-
£8,188 GBP
View
Price last confirmed 16 days ago
B+
Retailer 10
-
£8,189 GBP
View
Retailer 11
-
£8,488 GBP
View
Price last confirmed 16 days ago
B+
Retailer 12
-
£8,489 GBP
View
Retailer 13
-
£8,622 GBP
View
Price last confirmed 14 days ago
B
Retailer 14
-
£9,557 GBP
View
Retailer 15
-
£10,286 GBP
View
Price last confirmed 16 days ago
Most Expensive
NZ Jewellers
be851e44-a0bb-42f1-91a5-43aeb3674939 · Oct 20
£10,918 GBP
$14,695 USD
View
Price last confirmed 16 days ago
15 more retailers have this diamond
Prices start from £6,550 GBPSave up to £3,007 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+
1.53ct Round
£6,550 GBP