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Round|Natural|GIA

1.70ct D FL Round Natural Diamond

EX • D/FL • GIA 2557496221

Certificate GIA 2557496221

Diamond specifications and retailer prices

From £15,495 GBP
HK$162,200 HKD
As of October 30, 2026
Save £16,381 GBP (51%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £31,876 GBP at With Clarity · As of October 30, 2026
View at With Clarity

About this 1.7ct natural round diamond

This 1.7ct natural round sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 2557496221. Listed at 10 retailers as of October 30, 2026, with prices from £15,495 to £31,876, a £16,381 spread on the same certified stone. With Clarity lists it at £31,876. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.70
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2557496221
Dimensions7.59 × 7.64 × 4.76 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
7.59 mm7.64 mm1.70 ctD / FL
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2557496221
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 41.2°Culet: NDepth 62.6%

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: Oct 30
Current: £28,327 GBP|Low: £15,495 GBP|High: £28,668 GBP|Avg: £20,468 GBP|-0.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 8£15,495 GBP
Retailer 5£17,565 GBP
Retailer 2£17,905 GBP
Retailer 4£18,913 GBP
Retailer 6£19,253 GBP
Retailer 9£20,916 GBP
Retailer 7£21,422 GBP
Retailer 3£21,910 GBP
Retailer 1£28,327 GBP

42 data points across 9 retailers

10 retailers£15,495 GBP to £31,876 GBP

A
Cheapest Retailer
-
£15,495 GBP
HK$162,200 HKD
Retailer 2
-
£17,565 GBP
$23,535 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
£17,905 GBP
View
A
Retailer 4
-
£18,913 GBP
$25,341 USD
View
A
Retailer 5
-
£19,253 GBP
SGD 34,861 SGD
View
B+
Retailer 6
-
£20,916 GBP
$28,025 USD
View
B+
Retailer 7
-
£21,422 GBP
$28,703 USD
View
B+
Retailer 8
-
£21,910 GBP
€27,959 EUR
View
B+
Retailer 9
-
£28,327 GBP
View
Most Expensive
B
With Clarity
2557496221 · Oct 30
£31,876 GBP
$42,710 USD
View
9 more retailers have this diamond
Prices start from £15,495 GBPSave up to £16,381 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
1.70ct Round
£15,495 GBP