Round|Natural|GIA

1.15ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 01-15882976

Certificate GIA 01-15882976

Diamond specifications and retailer prices

From $3,780 USD
As of October 31, 2026
Save $2,806 USD (43%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $6,586 USD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.15ct natural round diamond

This 1.15ct natural round sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 01-15882976. Listed at 5 retailers as of October 30, 2026, with prices from $3,780 to $6,586, a $2,806 spread on the same certified stone. NZ Jewellers lists it at $6,586. 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

1.15
Carat
D
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
OriginNatural
Grading LabGIA
CertificateGIA 01-15882976
Dimensions6.61 × 6.66 × 4.16 mm
L/W Ratio1.01
Top View
6.61 mm6.66 mm1.15 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 01-15882976
Side View
Table 57.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 62.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $6,586 USD|Low: $3,780 USD|High: $6,660 USD|Avg: $4,748 USD|-1.1%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 1, 2026
Retailer 5$3,780 USD
Retailer 4$3,926 USD
Retailer 3$4,059 USD
Retailer 2$4,727 USD
NZ Jewellers$6,586 USD

10 data points across 5 retailers

5 retailers$3,780 USD to $6,586 USD

B+
Cheapest Retailer
-
$3,780 USD
B+
Retailer 2
-
$3,926 USD
View
B+
Retailer 3
-
$4,059 USD
View
B+
Retailer 4
-
$4,727 USD
View
Most Expensive
B
NZ Jewellers
96c53c97-8e5a-4b97-8959-aea0b31ca36b · Oct 30
$6,586 USD
View
4 more retailers have this diamond
Prices start from $3,780 USDSave up to $2,806 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.

B+
1.15ct Round
$3,780 USD