Round|Natural|GIA

0.90ct L SI1 Round Natural Diamond

GD • L/SI1 • GIA 1239815810

Certificate GIA 1239815810

Diamond specifications and retailer prices

From $588 USD
As of November 6, 2026
Save $1,874 USD (76%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,462 USD at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.9ct natural round diamond

This 0.9ct natural round sits in the just-under-one-carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a standard cut grade and certified by GIA 1239815810. Listed at 14 retailers as of November 5, 2026, with prices from $588 to $2,462, a $1,874 spread on the same certified stone. NZ Jewellers lists it at $2,462. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.90
Carat
L
Color
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle39.5°
Pavilion angle40.4°
OriginNatural
Grading LabGIA
CertificateGIA 1239815810
Dimensions5.88 × 5.97 × 3.95 mm
L/W Ratio1.02
Star length50%
Lower girdle80%
Top View
5.88 mm5.97 mm0.90 ctL / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1239815810
Side View
Table 55.0%Crown 39.5°Girdle: ThickPavilion 40.4°Culet: NoneDepth 66.7%

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: Nov 6
Current: $929 USD|Low: $588 USD|High: $1,152 USD|Avg: $902 USD|+3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5$588 USD
Retailer 4$797 USD
Retailer 6$811 USD
Retailer 7$925 USD
Retailer 1$929 USD
Retailer 2$1,010 USD
Retailer 3$1,149 USD

39 data points across 7 retailers

14 retailers$588 USD to $2,462 USD

B+
Cheapest Retailer
-
$588 USD
Retailer 2
-
$785 USD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$785 USD
View
B+
Retailer 4
-
$797 USD
View
B+
Retailer 5
-
$811 USD
View
B+
Retailer 6
-
$815 USD
View
B+
Retailer 7
-
$906 USD
View
B+
Retailer 8
-
$906 USD
View
B+
Retailer 9
-
$917 USD
View
B+
Retailer 10
-
$929 USD
View
B+
Retailer 11
-
$955 USD
View
B
Retailer 12
-
$1,010 USD
View
B
Retailer 13
-
$1,149 USD
View
Most Expensive
C
NZ Jewellers
3c3aecb2-023c-4227-95fc-d28d363ce399 · Nov 5
$2,462 USD
View
13 more retailers have this diamond
Prices start from $588 USDSave up to $1,874 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+
0.90ct Round
$588 USD