Radiant|Natural|GIA

1.70ct I SI1 Radiant Natural Diamond

EX • I/SI1 • GIA 6512913754

Certificate GIA 6512913754

Diamond specifications and retailer prices

From $6,151 USD
As of November 5, 2026
Save $4,885 USD (44%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $13,280 USD at NZ Jewellers · As of September 30, 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 I 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 6512913754. Listed at 26 retailers as of November 4, 2026, with a 79% 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
I
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle44.83°
Pavilion angle30.31°
OriginNatural
Grading LabGIA
CertificateGIA 6512913754
Dimensions7.63 × 5.86 × 4.01 mm
L/W Ratio1.30
Top View
7.63 mm5.86 mm1.70 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6512913754
Side View
Table 67.0%Crown 44.83°Girdle: THK-VTKPavilion 30.31°Culet: NoneDepth 68.3%

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 5
Current: $7,413 USD|Low: $5,236 USD|High: $11,198 USD|Avg: $7,878 USD|+0.1%
Retailer 1
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
November 7, 2026
Retailer 13$6,283 USD
Retailer 4$6,361 USD
Retailer 7$6,640 USD
Retailer 8$7,052 USD
Retailer 6$7,330 USD
Retailer 1$7,413 USD
Retailer 14$7,437 USD
Retailer 5$7,656 USD
Retailer 3$7,820 USD
Retailer 15$7,820 USD
Retailer 12$8,005 USD
Retailer 2$8,080 USD
Retailer 9$8,179 USD
Retailer 10$9,687 USD
Retailer 11$11,036 USD

37 data points across 15 retailers

26 retailers$6,151 USD to $11,036 USD

A
Cheapest Retailer
-
$6,151 USD
A
Retailer 2
-
$6,168 USD
View
B+
Retailer 3
-
$6,273 USD
View
A
Retailer 4
-
$6,283 USD
View
B+
Retailer 5
-
$6,361 USD
View
B+
Retailer 6
-
$6,640 USD
View
Final sale: no returns
B+
Retailer 7
-
$6,655 USD
View
B+
Retailer 8
-
$7,052 USD
View
B+
Retailer 9
-
$7,069 USD
View
Retailer 10
-
$7,194 USD
View
Price last confirmed 40 days ago
B+
Retailer 11
-
$7,285 USD
View
Retailer 12
-
$7,301 USD
View
Price last confirmed 15 days ago
B+
Retailer 13
-
$7,330 USD
View
B+
Retailer 14
-
$7,413 USD
View
B+
Retailer 15
-
$7,437 USD
View
Retailer 16
-
$7,656 USD
View
Price last confirmed 16 days ago
B+
Retailer 17
-
$7,820 USD
View
B+
Retailer 18
-
$7,820 USD
View
B
Retailer 19
-
$8,005 USD
View
B
Retailer 20
-
$8,047 USD
View
B
Retailer 21
-
$8,080 USD
View
B+
Retailer 22
-
$8,179 USD
View
Retailer 23
-
$8,300 USD
View
Price last confirmed 39 days ago
B
Retailer 24
-
$9,687 USD
View
B
Retailer 25
-
$11,036 USD
View
Most Expensive
NZ Jewellers
c49dc6d8-e438-456d-8d9d-4016756cf5bb · Sep 30
$13,280 USD
View
Price last confirmed 37 days ago
25 more retailers have this diamond
Prices start from $6,151 USDSave up to $4,885 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
$6,151 USD