Round|Natural|GIA

1.66ct D VS2 Round Natural Diamond

EX • D/VS2 • GIA 1165082781

Certificate GIA 1165082781

Diamond specifications and retailer prices

From £15,061 GBP

$20,180 USD

As of November 1, 2026

Save £14,527 GBP (49%) vs most expensive(unlock to see where)

22 retailers carry this diamond

Most expensive: £29,588 GBP at Diamond Quarter · As of October 29, 2026

View at Diamond Quarter

About this 1.66ct natural round diamond

This 1.66ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 1165082781. Listed at 22 retailers as of October 29, 2026, with prices from £15,061 to £29,588, a £14,527 spread on the same certified stone. Diamond Quarter lists it at £29,588. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66

Carat

Colour

VS2

Clarity

Excellent

Cut

Specifications

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

OriginNatural

Grading LabGIA

CertificateGIA 1165082781

Dimensions7.66 × 7.61 × 4.61 mm

L/W Ratio1.01

Culet sizeNone

View GIA Report →View Loupe360 Video →

Top View

OriginNatural

CutExcellent

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateGIA 1165082781

Side View

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 1

Current: £17,381 GBP|Low: £14,483 GBP|High: £27,470 GBP|Avg: £19,949 GBP|-1.5%

Retailer 1

Retailer 2

Retailer 3

Retailer 4

Retailer 5

Retailer 6

Retailer 7

Retailer 8

November 2, 2026

Retailer 5£15,061 GBP

Retailer 6£16,656 GBP

Retailer 1£17,381 GBP

Retailer 7£17,803 GBP

Retailer 8£18,249 GBP

Retailer 3£20,267 GBP

Retailer 4£25,534 GBP

Retailer 2£27,143 GBP

43 data points across 8 retailers

22 retailers£15,061 GBP to £29,588 GBP

B+

Cheapest Retailer

£15,061 GBP

$20,180 USD

B+

Retailer 2

£15,959 GBP

$21,383 USD

View

B+

Retailer 3

£15,977 GBP

$21,408 USD

View

B+

Retailer 4

£16,349 GBP

CA$30,425 CAD

View

Retailer 5

£16,656 GBP

$22,317 USD

View

Final sale: no returns

Retailer 6

£16,938 GBP

$22,695 USD

View

Retailer 7

£17,380 GBP

$23,287 USD

View

B+

Retailer 8

£17,381 GBP

View

Retailer 9

£17,803 GBP

A$36,698 AUD

View

Price last confirmed 29 days ago

Retailer 10

£18,249 GBP

$24,451 USD

View

Retailer 11

£18,621 GBP

$24,950 USD

View

Retailer 12

£18,621 GBP

$24,950 USD

View

Retailer 13

£18,828 GBP

$25,228 USD

View

Retailer 14

£19,240 GBP

$25,780 USD

View

Retailer 15

£19,523 GBP

$26,159 USD

View

Price last confirmed 15 days ago

Retailer 16

£19,552 GBP

$26,198 USD

View

Retailer 17

£20,267 GBP

€25,863 EUR

View

Retailer 18

£20,274 GBP

$27,165 USD

View

Retailer 19

£24,621 GBP

$32,990 USD

View

Retailer 20

£25,534 GBP

ZAR 552,714 ZAR

View

Retailer 21

£27,143 GBP

View

Most Expensive

Diamond Quarter

1.66VS2D11813139N · Oct 29

£29,588 GBP

View

21 more retailers have this diamond

Prices start from £15,061 GBPSave up to £14,527 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.

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B+

1.66ct Round

£15,061 GBP