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Round|Natural|GIA

1.51ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 7541811764

Certificate GIA 7541811764

Diamond specifications and retailer prices

From £4,549 GBP
₹580,499 INR
As of November 1, 2026
Save £5,386 GBP (54%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £9,935 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct 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 7541811764. Listed at 14 retailers as of October 30, 2026, with prices from £4,549 to £9,935, a £5,386 spread on the same certified stone. NZ Jewellers lists it at £9,935. 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

1.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7541811764
Dimensions7.28 × 7.32 × 4.61 mm
L/W Ratio1.01
Girdle conditionSlightly Thick
Top View
7.28 mm7.32 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7541811764
Side View
Table 56.0%Crown 36°Girdle: ThinPavilion 41.2°Culet: NoneDepth 63.1%

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 1
Current: £9,935 GBP|Low: £4,538 GBP|High: £10,180 GBP|Avg: £6,165 GBP|-2.4%
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 1, 2026
Retailer 2£4,549 GBP
Retailer 4£4,801 GBP
Retailer 5£5,059 GBP
Retailer 13£5,135 GBP
Retailer 12£5,474 GBP
Retailer 8£5,563 GBP
Retailer 7£5,716 GBP
Retailer 11£5,728 GBP
Retailer 3£6,065 GBP
Retailer 10£6,220 GBP
Retailer 9£7,298 GBP
Retailer 6£8,278 GBP
NZ Jewellers£9,935 GBP

25 data points across 13 retailers

14 retailers£4,549 GBP to £9,935 GBP

A
Cheapest Retailer
-
£4,549 GBP
₹580,499 INR
A
Retailer 2
-
£4,675 GBP
A$9,636 AUD
View
A
Retailer 3
-
£4,801 GBP
$6,433 USD
View
Final sale: no returns
A
Retailer 4
-
£5,059 GBP
$6,779 USD
View
A
Retailer 5
-
£5,135 GBP
$6,880 USD
View
A
Retailer 6
-
£5,474 GBP
$7,335 USD
View
A
Retailer 7
-
£5,563 GBP
View
A
Retailer 8
-
£5,716 GBP
View
Retailer 9
-
£5,728 GBP
A$11,808 AUD
View
Price last confirmed 10 days ago
A
Retailer 10
-
£6,065 GBP
$8,126 USD
View
B+
Retailer 11
-
£6,220 GBP
€7,937 EUR
View
B+
Retailer 12
-
£7,298 GBP
ZAR 157,963 ZAR
View
B+
Retailer 13
-
£8,278 GBP
View
Most Expensive
B
NZ Jewellers
0b4a8bda-cb19-441c-9a07-5033c22d5226 · Oct 30
£9,935 GBP
$13,312 USD
View
13 more retailers have this diamond
Prices start from £4,549 GBPSave up to £5,386 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
1.51ct Round
£4,549 GBP