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Round|Natural|GIA

0.90ct L SI1 Round Natural Diamond

GD • L/SI1 • GIA 1239815810

Certificate GIA 1239815810

Diamond specifications and retailer prices

From $840 AUD
As of November 6, 2026
Save $2,677 AUD (76%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $3,517 AUD 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 $840 to $3,517, a $2,677 spread on the same certified stone. NZ Jewellers lists it at $3,517. 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
Colour
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: $1,327 AUD|Low: $840 AUD|High: $1,646 AUD|Avg: $1,289 AUD|+3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 5$840 AUD
Retailer 4$1,139 AUD
Retailer 6$1,159 AUD
Retailer 7$1,321 AUD
Retailer 1$1,327 AUD
Retailer 2$1,443 AUD
Retailer 3$1,641 AUD

39 data points across 7 retailers

14 retailers$840 AUD to $3,517 AUD

B+
Cheapest Retailer
-
$840 AUD
Retailer 2
-
$1,121 AUD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$1,121 AUD
View
B+
Retailer 4
-
$1,139 AUD
View
B+
Retailer 5
-
$1,159 AUD
View
B+
Retailer 6
-
$1,164 AUD
View
B+
Retailer 7
-
$1,294 AUD
View
B+
Retailer 8
-
$1,294 AUD
View
B+
Retailer 9
-
$1,310 AUD
View
B+
Retailer 10
-
$1,327 AUD
View
B+
Retailer 11
-
$1,364 AUD
View
B
Retailer 12
-
$1,443 AUD
View
B
Retailer 13
-
$1,641 AUD
View
Most Expensive
C
NZ Jewellers
3c3aecb2-023c-4227-95fc-d28d363ce399 · Nov 5
$3,517 AUD
$2,462 USD
View
13 more retailers have this diamond
Prices start from $840 AUDSave up to $2,677 AUD

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
$840 AUD