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Round|Natural|GIA

5.09ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1488010693

Certificate GIA 1488010693

Diamond specifications and retailer prices

From $153,720 AUD
$107,980 USD
As of October 31, 2026
Save $23,333 AUD (13%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $177,053 AUD at Jared · As of October 30, 2026
View at Jared

About this 5.09ct natural round diamond

This 5.09ct natural round sits in the over five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1488010693. Listed at 3 retailers as of October 30, 2026, with prices from $153,720 to $177,053, a $23,333 spread on the same certified stone. Jared lists it at $177,053. 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

5.09
Carat
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1488010693
Dimensions11.07 × 11.15 × 6.71 mm
L/W Ratio1.01
Key to symbols
Crystal, Feather, Needle
Top View
11.07 mm11.15 mm5.09 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1488010693
Side View
Table 58.0%Crown 34°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 60.4%

Caratlytics Score

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

Price History

Last verified: Oct 31
Current: $177,053 AUD|Low: $153,720 AUD|High: $177,053 AUD|Avg: $163,801 AUD|+2.4%
Jared
Retailer 2
Retailer 3
Retailer 4
September 21, 2026
Retailer 3$153,720 AUD
Retailer 2$157,608 AUD
Retailer 4$158,546 AUD
Jared$177,053 AUD

7 data points across 4 retailers

3 retailers$153,720 AUD to $177,053 AUD

B+
Cheapest Retailer
-
$153,720 AUD
$107,980 USD
B
Retailer 2
-
$158,546 AUD
$111,370 USD
View
Most Expensive
B
Jared
149776698 · Oct 30
$177,053 AUD
$124,370 USD
View
2 more retailers have this diamond
Prices start from $153,720 AUDSave up to $23,333 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+
5.09ct Round
$153,720 AUD