Princess|Natural|GIA

1.51ct H SI1 Princess Natural Diamond

EX • H/SI1 • GIA 3565156631

Certificate GIA 3565156631

Diamond specifications and retailer prices

From $3,398 USD
As of October 28, 2026
Save $2,909 USD (46%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $6,307 USD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural princess diamond

This 1.51ct natural princess 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 stated by the retailer rather than the lab and certified by GIA 3565156631. Listed at 16 retailers as of October 26, 2026, with prices from $3,398 to $6,307, a $2,909 spread on the same certified stone. Wholesale Diamonds Direct lists it at $6,307. 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 (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.13°
Pavilion angle37.98°
OriginNatural
Grading LabGIA
CertificateGIA 3565156631
Dimensions6.16 × 6.04 × 4.43 mm
L/W Ratio1.02
Culet sizeNone
Top View
6.16 mm6.04 mm1.51 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3565156631
Side View
Table 70.0%Crown 30.13°Girdle: THK-VTKPavilion 37.98°Culet: NoneDepth 73.3%

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: Oct 28
Current: $5,303 USD|Low: $3,398 USD|High: $6,671 USD|Avg: $4,507 USD|-3.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Wholesale Diamonds Direct
October 29, 2026
Retailer 10$3,398 USD
Retailer 13$3,452 USD
Retailer 16$3,461 USD
Retailer 11$3,631 USD
Retailer 5$3,708 USD
Retailer 6$3,755 USD
Retailer 8$3,803 USD
Retailer 12$3,943 USD
Retailer 14$4,240 USD
Retailer 2$4,321 USD
Retailer 3$4,370 USD
Retailer 9$4,388 USD
Retailer 7$4,948 USD
Retailer 1$5,303 USD
Retailer 15$5,730 USD
Retailer 4$6,090 USD
Wholesale Diamonds Direct$6,307 USD

19 data points across 17 retailers

16 retailers$3,398 USD to $6,307 USD

A
Cheapest Retailer
-
$3,398 USD
A
Retailer 2
-
$3,452 USD
View
A
Retailer 3
-
$3,461 USD
SGD 4,677 SGD
View
A
Retailer 4
-
$3,631 USD
View
A
Retailer 5
-
$3,708 USD
SGD 5,011 SGD
View
A
Retailer 6
-
$3,755 USD
View
A
Retailer 7
-
$3,803 USD
View
A
Retailer 8
-
$3,943 USD
£3,105 GBP
View
A
Retailer 9
-
$4,240 USD
View
A
Retailer 10
-
$4,321 USD
View
A
Retailer 11
-
$4,370 USD
View
A
Retailer 12
-
$4,388 USD
€4,179 EUR
View
B+
Retailer 13
-
$5,303 USD
View
B+
Retailer 14
-
$5,730 USD
View
B+
Retailer 15
-
$6,090 USD
View
Most Expensive
B
Wholesale Diamonds Direct
427169053 · Oct 26
$6,307 USD
View
15 more retailers have this diamond
Prices start from $3,398 USDSave up to $2,909 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 Princess
$3,398 USD