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Round|Natural|GIA

1.66ct J IF Round Natural Diamond

EX • J/IF • GIA 5543083692

Certificate GIA 5543083692

Diamond specifications and retailer prices

From £4,540 GBP
HK$47,600 HKD
As of November 1, 2026
Save £5,671 GBP (56%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £10,211 GBP at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 1.66ct natural round diamond

This 1.66ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 5543083692. Listed at 21 retailers as of November 1, 2026, with prices from £4,540 to £10,211, a £5,671 spread on the same certified stone. NZ Jewellers lists it at £10,211. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
J
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 5543083692
Dimensions7.50 × 7.54 × 4.70 mm
L/W Ratio1.01
Top View
7.50 mm7.54 mm1.66 ctJ / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5543083692
Side View
Table 57.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

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: £10,211 GBP|Low: £4,502 GBP|High: £10,310 GBP|Avg: £6,309 GBP|-1.0%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
November 2, 2026
Retailer 18£4,540 GBP
Retailer 15£5,088 GBP
Retailer 4£5,254 GBP
Retailer 10£5,329 GBP
Retailer 9£5,394 GBP
Retailer 13£5,542 GBP
Retailer 3£5,635 GBP
Retailer 16£5,678 GBP
Retailer 14£5,690 GBP
Retailer 7£5,725 GBP
Retailer 6£5,895 GBP
Retailer 8£5,972 GBP
Retailer 2£6,036 GBP
Retailer 22£6,105 GBP
Retailer 23£6,199 GBP
Retailer 11£6,219 GBP
Retailer 19£6,280 GBP
Retailer 17£6,641 GBP
Retailer 21£7,044 GBP
Retailer 5£7,483 GBP
Retailer 20£8,554 GBP
Retailer 12£8,816 GBP
NZ Jewellers£10,211 GBP

36 data points across 23 retailers

21 retailers£4,540 GBP to £10,211 GBP

A
Cheapest Retailer
-
£4,540 GBP
HK$47,600 HKD
A
Retailer 2
-
£5,254 GBP
$7,050 USD
View
Retailer 3
-
£5,329 GBP
$7,151 USD
View
Price last confirmed 17 days ago
B+
Retailer 4
-
£5,542 GBP
View
B+
Retailer 5
-
£5,635 GBP
$7,562 USD
View
Final sale: no returns
Retailer 6
-
£5,678 GBP
$7,620 USD
View
Price last confirmed 41 days ago
Retailer 7
-
£5,690 GBP
$7,636 USD
View
Price last confirmed 17 days ago
B+
Retailer 8
-
£5,725 GBP
SGD 10,382 SGD
View
Retailer 9
-
£5,895 GBP
$7,911 USD
View
Price last confirmed 19 days ago
Retailer 10
-
£5,972 GBP
A$12,329 AUD
View
Price last confirmed 29 days ago
B+
Retailer 11
-
£6,036 GBP
View
B+
Retailer 12
-
£6,105 GBP
$8,193 USD
View
B+
Retailer 13
-
£6,199 GBP
$8,319 USD
View
B+
Retailer 14
-
£6,219 GBP
$8,345 USD
View
B+
Retailer 15
-
£6,280 GBP
$8,427 USD
View
B+
Retailer 16
-
£6,641 GBP
€8,488 EUR
View
B+
Retailer 17
-
£7,044 GBP
$9,453 USD
View
Retailer 18
-
£7,483 GBP
ZAR 162,219 ZAR
View
Price last confirmed 16 days ago
B
Retailer 19
-
£8,554 GBP
View
B
Retailer 20
-
£8,816 GBP
$11,830 USD
View
Most Expensive
B
NZ Jewellers
5fde8cba-de8e-466f-bd07-7713cc61d997 · Nov 2
£10,211 GBP
$13,703 USD
View
20 more retailers have this diamond
Prices start from £4,540 GBPSave up to £5,671 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
1.66ct Round
£4,540 GBP