Radiant|Natural|GIA

1.70ct H SI1 Radiant Natural Diamond

ID • H/SI1 • GIA 2516212093

Certificate GIA 2516212093

Diamond specifications and retailer prices

From $4,757 USD
£3,746 GBP
As of October 28, 2026
Save $3,687 USD (44%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $8,940 USD at NZ Jewellers · As of September 29, 2026
View at NZ Jewellers

About this 1.7ct natural radiant diamond

This 1.7ct natural radiant sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2516212093. Listed at 10 retailers as of October 28, 2026, with a 78% 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

1.70
Carat
H
Color
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle44.89°
Pavilion angle30.69°
OriginNatural
Grading LabGIA
CertificateGIA 2516212093
Dimensions7.50 × 5.95 × 4.05 mm
L/W Ratio1.26
Top View
7.50 mm5.95 mm1.70 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2516212093
Side View
Table 66.0%Crown 44.89°Girdle: Very ThickPavilion 30.69°Culet: NoneDepth 68.0%

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 28
Current: $4,998 USD|Low: $4,706 USD|High: $8,616 USD|Avg: $5,899 USD|-2.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 3$4,757 USD
Retailer 1$4,998 USD
Retailer 4$5,040 USD
Retailer 5$5,388 USD
Retailer 6$5,827 USD
Retailer 2$8,444 USD

39 data points across 6 retailers

10 retailers$4,757 USD to $8,444 USD

A
Cheapest Retailer
-
$4,757 USD
£3,746 GBP
A
Retailer 2
-
$4,998 USD
£3,935 GBP
View
A
Retailer 3
-
$5,040 USD
View
A
Retailer 4
-
$5,345 USD
View
Price last confirmed 36 days ago
A
Retailer 5
-
$5,345 USD
View
Price last confirmed 21 days ago
A
Retailer 6
-
$5,345 USD
View
Price last confirmed 28 days ago
A
Retailer 7
-
$5,388 USD
A$8,290 AUD
View
Price last confirmed 19 days ago
B
Retailer 8
-
$8,444 USD
£6,649 GBP
View
B
Retailer 9
-
$8,940 USD
View
Price last confirmed 38 days ago
Most Expensive
B
NZ Jewellers
55a6967a-7564-4f2f-b4bf-b2838b6666c7 · Sep 29
$8,940 USD
View
Price last confirmed 29 days ago
9 more retailers have this diamond
Prices start from $4,757 USDSave up to $3,687 USD

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 Radiant
$4,757 USD