Round|Natural|GIA

1.50ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 7553193937

Certificate GIA 7553193937

Diamond specifications and retailer prices

From £5,598 GBP
HK$58,600 HKD
As of October 30, 2026
Save £4,199 GBP (43%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £12,529 GBP at NZ Jewellers · As of September 27, 2026
View at NZ Jewellers

About this 1.5ct natural round diamond

This 1.5ct 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 7553193937. Listed at 24 retailers as of October 26, 2026, with a 75% 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

1.50
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7553193937
Dimensions7.28 × 7.33 × 4.50 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Cloud, Crystal, Feather, Indented Natural, Natural
Top View
7.28 mm7.33 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7553193937
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.6%

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: Oct 30
Current: £8,186 GBP|Low: £5,960 GBP|High: £9,902 GBP|Avg: £7,653 GBP|+0.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 5£5,996 GBP
Retailer 2£6,622 GBP
Retailer 6£6,742 GBP
Retailer 10£6,877 GBP
Retailer 3£6,915 GBP
Retailer 8£6,915 GBP
Retailer 4£7,230 GBP
Retailer 1£8,186 GBP
Retailer 11£9,041 GBP
Retailer 7£9,673 GBP
Retailer 9£9,797 GBP

25 data points across 11 retailers

24 retailers£5,598 GBP to £9,797 GBP

A
Cheapest Retailer
-
£5,598 GBP
HK$58,600 HKD
A
Retailer 2
-
£5,996 GBP
₹765,170 INR
View
Retailer 3
-
£6,057 GBP
$8,116 USD
View
Price last confirmed 9 days ago
Retailer 4
-
£6,197 GBP
SGD 11,220 SGD
View
Price last confirmed 19 days ago
B+
Retailer 5
-
£6,622 GBP
SGD 11,990 SGD
View
B+
Retailer 6
-
£6,742 GBP
View
B+
Retailer 7
-
£6,762 GBP
$9,061 USD
View
B+
Retailer 8
-
£6,765 GBP
$9,065 USD
View
B+
Retailer 9
-
£6,866 GBP
$9,200 USD
View
Retailer 10
-
£6,877 GBP
A$14,175 AUD
View
Price last confirmed 7 days ago
Retailer 11
-
£6,915 GBP
$9,265 USD
View
Price last confirmed 15 days ago
B+
Retailer 12
-
£6,915 GBP
$9,265 USD
View
B+
Retailer 13
-
£6,915 GBP
$9,265 USD
View
Final sale: no returns
B+
Retailer 14
-
£7,091 GBP
A$14,618 AUD
View
B+
Retailer 15
-
£7,230 GBP
View
Retailer 16
-
£7,491 GBP
$10,037 USD
View
Price last confirmed 23 days ago
Retailer 17
-
£7,607 GBP
$10,192 USD
View
Price last confirmed 32 days ago
B+
Retailer 18
-
£7,661 GBP
$10,265 USD
View
B+
Retailer 19
-
£8,186 GBP
€10,446 EUR
View
Retailer 20
-
£8,644 GBP
$11,582 USD
View
Price last confirmed 32 days ago
Retailer 21
-
£9,041 GBP
ZAR 195,693 ZAR
View
Price last confirmed 9 days ago
B
Retailer 22
-
£9,673 GBP
View
B
Retailer 23
-
£9,797 GBP
View
Most Expensive
NZ Jewellers
6460c838-1ee3-48c6-889d-4c2a6d138f02 · Sep 27
£12,529 GBP
$16,788 USD
View
Price last confirmed 34 days ago
23 more retailers have this diamond
Prices start from £5,598 GBPSave up to £4,199 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
1.50ct Round
£5,598 GBP