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Round|Natural|GIA

1.13ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 1507664815

Certificate GIA 1507664815

Diamond specifications and retailer prices

From £3,541 GBP
$4,745 USD
As of October 30, 2026
Save £3,956 GBP (53%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £7,497 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.13ct natural round diamond

This 1.13ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1507664815. Listed at 16 retailers as of October 30, 2026, with prices from £3,541 to £7,497, a £3,956 spread on the same certified stone. NZ Jewellers lists it at £7,497. 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

1.13
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle34°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1507664815
Dimensions6.69 × 6.74 × 4.07 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
6.69 mm6.74 mm1.13 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1507664815
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 60.6%

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: Oct 30
Current: £7,497 GBP|Low: £3,124 GBP|High: £7,497 GBP|Avg: £4,680 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
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 6£3,541 GBP
Retailer 13£3,749 GBP
Retailer 5£3,803 GBP
Retailer 4£4,061 GBP
Retailer 8£4,061 GBP
Retailer 16£4,061 GBP
Retailer 9£4,344 GBP
Retailer 15£4,365 GBP
Retailer 14£4,431 GBP
Retailer 12£4,514 GBP
Retailer 3£4,685 GBP
Retailer 10£4,899 GBP
Retailer 7£4,944 GBP
Retailer 2£5,507 GBP
Retailer 11£6,640 GBP
NZ Jewellers£7,497 GBP

37 data points across 16 retailers

16 retailers£3,541 GBP to £7,497 GBP

B+
Cheapest Retailer
-
£3,541 GBP
$4,745 USD
B+
Retailer 2
-
£3,749 GBP
$5,023 USD
View
Final sale: no returns
B+
Retailer 3
-
£3,803 GBP
$5,095 USD
View
B+
Retailer 4
-
£4,061 GBP
$5,441 USD
View
B+
Retailer 5
-
£4,061 GBP
$5,441 USD
View
B+
Retailer 6
-
£4,061 GBP
$5,441 USD
View
B+
Retailer 7
-
£4,344 GBP
View
Retailer 8
-
£4,365 GBP
View
Price last confirmed 32 days ago
Retailer 9
-
£4,431 GBP
A$9,135 AUD
View
Price last confirmed 22 days ago
B
Retailer 10
-
£4,514 GBP
SGD 8,173 SGD
View
B
Retailer 11
-
£4,685 GBP
$6,278 USD
View
B
Retailer 12
-
£4,899 GBP
€6,251 EUR
View
Retailer 13
-
£4,944 GBP
$6,625 USD
View
Price last confirmed 17 days ago
B
Retailer 14
-
£5,507 GBP
ZAR 119,215 ZAR
View
B
Retailer 15
-
£6,640 GBP
View
Most Expensive
B
NZ Jewellers
baca8433-cdf7-43aa-ad06-53a4898bb023 · Oct 30
£7,497 GBP
$10,045 USD
View
15 more retailers have this diamond
Prices start from £3,541 GBPSave up to £3,956 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+
1.13ct Round
£3,541 GBP