Round|Natural|GIA

1.51ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 5443367010

Certificate GIA 5443367010

Diamond specifications and retailer prices

From $5,146 USD
HK$40,200 HKD
As of November 1, 2026
Save $6,444 USD (56%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $11,590 USD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5443367010. Listed at 19 retailers as of October 27, 2026, with prices from $5,146 to $11,590, a $6,444 spread on the same certified stone. NZ Jewellers lists it at $11,590. 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

1.51
Carat
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5443367010
Dimensions7.36 × 7.40 × 4.50 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
7.36 mm7.40 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5443367010
Side View
Table 57.0%Crown 32°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.0%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $7,177 USD|Low: $5,146 USD|High: $10,333 USD|Avg: $7,303 USD|+9.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 4$5,146 USD
Retailer 3$5,863 USD
Retailer 9$6,346 USD
Retailer 10$6,396 USD
Retailer 11$6,796 USD
Retailer 2$7,036 USD
Retailer 5$7,148 USD
Retailer 1$7,177 USD
Retailer 6$7,703 USD
Retailer 7$8,438 USD
Retailer 8$10,224 USD

40 data points across 11 retailers

19 retailers$5,146 USD to $11,590 USD

A
Cheapest Retailer
-
$5,146 USD
HK$40,200 HKD
B+
Retailer 2
-
$5,863 USD
View
B+
Retailer 3
-
$6,044 USD
View
B+
Retailer 4
-
$6,057 USD
View
B+
Retailer 5
-
$6,346 USD
SGD 8,576 SGD
View
Retailer 6
-
$6,397 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$6,420 USD
View
Retailer 8
-
$6,796 USD
A$10,455 AUD
View
Price last confirmed 28 days ago
B+
Retailer 9
-
$6,930 USD
View
Retailer 10
-
$7,036 USD
View
Price last confirmed 7 days ago
Retailer 11
-
$7,090 USD
View
Price last confirmed 7 days ago
B+
Retailer 12
-
$7,091 USD
View
B+
Retailer 13
-
$7,148 USD
€6,808 EUR
View
B
Retailer 14
-
$7,177 USD
£5,651 GBP
View
B+
Retailer 15
-
$7,703 USD
£6,065 GBP
View
B+
Retailer 16
-
$7,996 USD
View
B+
Retailer 17
-
$8,438 USD
ZAR 136,322 ZAR
View
B
Retailer 18
-
$10,224 USD
£8,050 GBP
View
Most Expensive
B
NZ Jewellers
52f86b50-f4b6-4949-93c9-690b18e8f1aa · Oct 27
$11,590 USD
View
18 more retailers have this diamond
Prices start from $5,146 USDSave up to $6,444 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.

A
1.51ct Round
$5,146 USD