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0.75ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6511557506

Certificate GIA 6511557506

Diamond specifications and retailer prices

From $1,789 NZD
₹96,006 INR
As of November 1, 2026
Save $4,149 NZD (70%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $5,938 NZD at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

About this 0.75ct natural round diamond

This 0.75ct natural round sits in the just-under-one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6511557506. Listed at 18 retailers as of October 31, 2026, with prices from $1,789 to $5,938, a $4,149 spread on the same certified stone. Diamond Quarter lists it at $5,938. 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

0.75
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6511557506
Dimensions5.84 × 5.80 × 3.62 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.84 mm5.80 mm0.75 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6511557506
Side View
Table 58.0%Crown 35°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.2%

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 1
Current: $1,789 NZD|Low: $1,714 NZD|High: $4,457 NZD|Avg: $2,834 NZD|-2.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 1$1,789 NZD
Retailer 7$2,218 NZD
Retailer 9$2,227 NZD
Retailer 6$2,236 NZD
Retailer 3$2,732 NZD
Retailer 5$3,122 NZD
Retailer 8$3,138 NZD
Retailer 4$3,591 NZD
Retailer 2$4,405 NZD

38 data points across 9 retailers

18 retailers$1,789 NZD to $5,938 NZD

A
Cheapest Retailer
-
$1,789 NZD
₹96,006 INR
A
Retailer 2
-
$2,218 NZD
$1,250 USD
View
Final sale: no returns
A
Retailer 3
-
$2,227 NZD
$1,255 USD
View
Retailer 4
-
$2,236 NZD
$1,260 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
$2,404 NZD
$1,355 USD
View
A
Retailer 6
-
$2,404 NZD
$1,355 USD
View
A
Retailer 7
-
$2,436 NZD
$1,373 USD
View
A
Retailer 8
-
$2,516 NZD
$1,418 USD
View
A
Retailer 9
-
$2,599 NZD
$1,465 USD
View
A
Retailer 10
-
$2,732 NZD
£1,213 GBP
View
A
Retailer 11
-
$2,775 NZD
$1,564 USD
View
B+
Retailer 12
-
$3,003 NZD
$1,692 USD
View
B+
Retailer 13
-
$3,122 NZD
€1,676 EUR
View
Retailer 14
-
$3,138 NZD
A$2,721 AUD
View
Price last confirmed 27 days ago
B+
Retailer 15
-
$3,591 NZD
ZAR 32,698 ZAR
View
B+
Retailer 16
-
$4,405 NZD
£1,955 GBP
View
B
Retailer 17
-
$5,866 NZD
$3,306 USD
View
Most Expensive
B
Diamond Quarter
0.75SI1D65064FBDN · Oct 31
$5,938 NZD
£2,635 GBP
View
17 more retailers have this diamond
Prices start from $1,789 NZDSave up to $4,149 NZD

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
0.75ct Round
$1,789 NZD