Pear|Natural|GIA

1.51ct F SI1 Pear Natural Diamond

EX • F/SI1 • GIA 6561490351

Certificate GIA 6561490351

Diamond specifications and retailer prices

From £5,708 GBP
SGD 10,351 SGD
As of November 3, 2026
Save £1,626 GBP (22%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £9,265 GBP at Helzberg Diamonds · As of October 21, 2026
View at Helzberg Diamonds

About this 1.51ct natural pear diamond

This 1.51ct natural pear sits in the one-and-a-half to two carat band, graded F 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 6561490351. Listed at 13 retailers as of November 2, 2026, with a 28% 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

1.51
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.64°
Pavilion angle40.31°
OriginNatural
Grading LabGIA
CertificateGIA 6561490351
Dimensions9.93 × 6.30 × 4.00 mm
L/W Ratio1.58
Culet sizeNone
Top View
9.93 mm6.30 mm1.51 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6561490351
Side View
Table 62.0%Crown 38.64°Girdle: STK-THKPavilion 40.31°Culet: NoneDepth 63.5%

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 3
Current: £9,265 GBP|Low: £5,708 GBP|High: £10,229 GBP|Avg: £7,142 GBP
Helzberg Diamonds
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 3, 2026
Retailer 7£5,708 GBP
Retailer 3£6,042 GBP
Retailer 8£6,175 GBP
Retailer 9£6,179 GBP
Retailer 12£6,207 GBP
Retailer 16£6,281 GBP
Retailer 15£6,367 GBP
Retailer 4£6,453 GBP
Retailer 2£6,503 GBP
Retailer 6£7,334 GBP
Retailer 13£7,403 GBP
Retailer 14£7,507 GBP
Retailer 10£7,556 GBP
Retailer 11£8,413 GBP
Helzberg Diamonds£9,265 GBP
Retailer 5£10,229 GBP

26 data points across 16 retailers

13 retailers£5,708 GBP to £7,334 GBP

B+
Cheapest Retailer
-
£5,708 GBP
SGD 10,351 SGD
B+
Retailer 2
-
£6,042 GBP
$8,108 USD
View
B+
Retailer 3
-
£6,175 GBP
$8,287 USD
View
B+
Retailer 4
-
£6,179 GBP
SGD 11,205 SGD
View
Retailer 5
-
£6,207 GBP
$8,330 USD
View
Price last confirmed 15 days ago
B+
Retailer 6
-
£6,281 GBP
$8,429 USD
View
B+
Retailer 7
-
£6,367 GBP
$8,544 USD
View
B+
Retailer 8
-
£6,453 GBP
$8,660 USD
View
B+
Retailer 9
-
£6,503 GBP
View
B
Retailer 10
-
£7,334 GBP
$9,841 USD
View
Retailer 11
-
£7,403 GBP
$9,934 USD
View
Price last confirmed 11 days ago
Retailer 12
-
£7,556 GBP
$10,140 USD
View
Price last confirmed 7 days ago
Most Expensive
Helzberg Diamonds
XZRMLMHKPGJLH · Oct 21
£9,265 GBP
$12,433 USD
View
Price last confirmed 13 days ago
12 more retailers have this diamond
Prices start from £5,708 GBPSave up to £1,626 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+
1.51ct Pear
£5,708 GBP