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Round|Natural|GIA

1.70ct M SI2 Round Natural Diamond

EX • M/SI2 • GIA 6511976194

Certificate GIA 6511976194

Diamond specifications and retailer prices

From $2,896 USD
As of November 4, 2026
Save $3,395 USD (54%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: $6,291 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.7ct natural round diamond

This 1.7ct natural round sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6511976194. Listed at 7 retailers as of November 4, 2026, with prices from $2,896 to $6,291, a $3,395 spread on the same certified stone. NZ Jewellers lists it at $6,291. 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
M
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6511976194
Dimensions7.64 × 7.60 × 4.79 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Pinpoint, Indented Natural
Top View
7.64 mm7.60 mm1.70 ctM / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6511976194
Side View
Table 56.0%Crown 35°Girdle: THN-STKPavilion 41.4°Culet: NoneDepth 62.9%

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 4
Current: $6,291 USD|Low: $2,237 USD|High: $6,291 USD|Avg: $3,404 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 18, 2026
Retailer 4$2,237 USD
Retailer 12$2,437 USD
Retailer 3$2,470 USD
Retailer 6$2,896 USD
Retailer 7$3,009 USD
Retailer 9$3,009 USD
Retailer 2$3,060 USD
Retailer 5$3,125 USD
Retailer 8$3,472 USD
Retailer 11$4,102 USD
Retailer 10$4,287 USD
NZ Jewellers$6,291 USD

5 data points across 12 retailers

7 retailers$2,896 USD to $6,291 USD

A
Cheapest Retailer
-
$2,896 USD
B+
Retailer 2
-
$3,009 USD
View
Retailer 3
-
$3,009 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
$3,060 USD
View
B+
Retailer 5
-
$3,125 USD
View
B+
Retailer 6
-
$3,472 USD
View
Most Expensive
C
NZ Jewellers
b596512e-5dd1-4a53-9442-991dd298fa51 · Nov 5
$6,291 USD
View
6 more retailers have this diamond
Prices start from $2,896 USDSave up to $3,395 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 Round
$2,896 USD